155232906 has 16 divisors (see below), whose sum is σ = 311623200. Its totient is φ = 51551408.

The previous prime is 155232901. The next prime is 155232937. The reversal of 155232906 is 609232551.

It is not an unprimeable number, because it can be changed into a prime (155232901) 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, 46476 + ... + 49703.

It is an arithmetic number, because the mean of its divisors is an integer number (19476450).

Almost surely, 2^155232906 is an apocalyptic number.

155232906 is an abundant number, since it is smaller than the sum of its proper divisors (156390294).

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

155232906 is a wasteful number, since it uses less digits than its factorization.

155232906 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96453.

The product of its (nonzero) digits is 16200, while the sum is 33.

The square root of 155232906 is about 12459.2498169031. The cubic root of 155232906 is about 537.4374541247.

The spelling of 155232906 in words is "one hundred fifty-five million, two hundred thirty-two thousand, nine hundred six".