156231552 has 64 divisors (see below), whose sum is σ = 418118400. Its totient is φ = 51684864.

The previous prime is 156231541. The next prime is 156231557. The reversal of 156231552 is 255132651.

It is a happy number.

156231552 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (64).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (156231557) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 51913 + ... + 54839.

It is an arithmetic number, because the mean of its divisors is an integer number (6533100).

Almost surely, 2^156231552 is an apocalyptic number.

156231552 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 156231552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (209059200).

156231552 is an abundant number, since it is smaller than the sum of its proper divisors (261886848).

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

156231552 is a wasteful number, since it uses less digits than its factorization.

156231552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3083 (or 3071 counting only the distinct ones).

The product of its digits is 9000, while the sum is 30.

The square root of 156231552 is about 12499.2620582177. The cubic root of 156231552 is about 538.5874743344.

The spelling of 156231552 in words is "one hundred fifty-six million, two hundred thirty-one thousand, five hundred fifty-two".