231656001 has 16 divisors (see below), whose sum is σ = 319739904. Its totient is φ = 149071104.

The previous prime is 231655993. The next prime is 231656003. The reversal of 231656001 is 100656132.

231656001 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 231656001 - 2³ = 231655993 is a prime.

It is not an unprimeable number, because it can be changed into a prime (231656003) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5881 + ... + 22313.

It is an arithmetic number, because the mean of its divisors is an integer number (19983744).

Almost surely, 2^231656001 is an apocalyptic number.

It is an amenable number.

231656001 is a deficient number, since it is larger than the sum of its proper divisors (88083903).

231656001 is a wasteful number, since it uses less digits than its factorization.

231656001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16600.

The product of its (nonzero) digits is 1080, while the sum is 24.

The square root of 231656001 is about 15220.2497022881. The cubic root of 231656001 is about 614.1595155085.

The spelling of 231656001 in words is "two hundred thirty-one million, six hundred fifty-six thousand, one".