231356027 has 16 divisors (see below), whose sum is σ = 280535040. Its totient is φ = 186375168.

The previous prime is 231355979. The next prime is 231356029. The reversal of 231356027 is 720653132.

It is a de Polignac number, because none of the positive numbers 2^k-231356027 is a prime.

It is a super-2 number, since 2×231356027² = 107051222458449458, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (231356029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10043 + ... + 23739.

It is an arithmetic number, because the mean of its divisors is an integer number (17533440).

Almost surely, 2^231356027 is an apocalyptic number.

231356027 is a deficient number, since it is larger than the sum of its proper divisors (49179013).

231356027 is a wasteful number, since it uses less digits than its factorization.

231356027 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13850.

The product of its (nonzero) digits is 7560, while the sum is 29.

The square root of 231356027 is about 15210.3920725273. The cubic root of 231356027 is about 613.8943069459.

The spelling of 231356027 in words is "two hundred thirty-one million, three hundred fifty-six thousand, twenty-seven".