155231896 has 32 divisors (see below), whose sum is σ = 318816000. Its totient is φ = 70529536.

The previous prime is 155231893. The next prime is 155231897. The reversal of 155231896 is 698132551.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155231893) 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, 15736 + ... + 23623.

It is an arithmetic number, because the mean of its divisors is an integer number (9963000).

Almost surely, 2^155231896 is an apocalyptic number.

It is an amenable number.

155231896 is an abundant number, since it is smaller than the sum of its proper divisors (163584104).

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

155231896 is a wasteful number, since it uses less digits than its factorization.

155231896 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39411 (or 39407 counting only the distinct ones).

The product of its digits is 64800, while the sum is 40.

The square root of 155231896 is about 12459.2092847018. The cubic root of 155231896 is about 537.4362885364.

The spelling of 155231896 in words is "one hundred fifty-five million, two hundred thirty-one thousand, eight hundred ninety-six".