145797750 has 96 divisors (see below), whose sum is σ = 450605376. Its totient is φ = 33321600.

The previous prime is 145797737. The next prime is 145797767. The reversal of 145797750 is 57797541.

145797750 is a `hidden beast` number, since 1 + 4 + 579 + 7 + 75 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a junction number, because it is equal to n+sod(n) for n = 145797696 and 145797705.

It is a congruent number.

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 47 ways as a sum of consecutive naturals, for example, 11122 + ... + 20378.

It is an arithmetic number, because the mean of its divisors is an integer number (4693806).

Almost surely, 2^145797750 is an apocalyptic number.

145797750 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 145797750, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (225302688).

145797750 is an abundant number, since it is smaller than the sum of its proper divisors (304807626).

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

145797750 is a wasteful number, since it uses less digits than its factorization.

145797750 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9287 (or 9274 counting only the distinct ones).

The product of its (nonzero) digits is 308700, while the sum is 45.

The square root of 145797750 is about 12074.6739086403. The cubic root of 145797750 is about 526.3204854406.

The spelling of 145797750 in words is "one hundred forty-five million, seven hundred ninety-seven thousand, seven hundred fifty".