145205928 has 96 divisors (see below), whose sum is σ = 460474560. Its totient is φ = 40469760.

The previous prime is 145205917. The next prime is 145205939. The reversal of 145205928 is 829502541.

145205928 is a `hidden beast` number, since 1 + 45 + 20 + 592 + 8 = 666.

It is an interprime number because it is at equal distance from previous prime (145205917) and next prime (145205939).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 145205892 and 145205901.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 17151 + ... + 24177.

It is an arithmetic number, because the mean of its divisors is an integer number (4796610).

Almost surely, 2^145205928 is an apocalyptic number.

145205928 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 145205928, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (230237280).

145205928 is an abundant number, since it is smaller than the sum of its proper divisors (315268632).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

145205928 is a wasteful number, since it uses less digits than its factorization.

145205928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7087 (or 7080 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 36.

The square root of 145205928 is about 12050.1422398244. The cubic root of 145205928 is about 525.6073732485.

The spelling of 145205928 in words is "one hundred forty-five million, two hundred five thousand, nine hundred twenty-eight".