145143552 has 72 divisors (see below), whose sum is σ = 409053456. Its totient is φ = 45531136.

The previous prime is 145143469. The next prime is 145143571. The reversal of 145143552 is 255341541.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7498 + ... + 18614.

It is an arithmetic number, because the mean of its divisors is an integer number (5681298).

Almost surely, 2^145143552 is an apocalyptic number.

145143552 is a gapful number since it is divisible by the number (12) 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 145143552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (204526728).

145143552 is an abundant number, since it is smaller than the sum of its proper divisors (263909904).

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

145143552 is a wasteful number, since it uses less digits than its factorization.

145143552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11153 (or 11139 counting only the distinct ones).

The product of its digits is 12000, while the sum is 30.

The square root of 145143552 is about 12047.5537765971. The cubic root of 145143552 is about 525.5321008828.

The spelling of 145143552 in words is "one hundred forty-five million, one hundred forty-three thousand, five hundred fifty-two".