231406158 has 32 divisors (see below), whose sum is σ = 469929600. Its totient is φ = 75955616.

The previous prime is 231406127. The next prime is 231406169. The reversal of 231406158 is 851604132.

It is a congruent number.

It is an unprimeable number.

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, 208108 + ... + 209216.

It is an arithmetic number, because the mean of its divisors is an integer number (14685300).

Almost surely, 2^231406158 is an apocalyptic number.

231406158 is an abundant number, since it is smaller than the sum of its proper divisors (238523442).

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

231406158 is a wasteful number, since it uses less digits than its factorization.

231406158 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1616.

The product of its (nonzero) digits is 5760, while the sum is 30.

The square root of 231406158 is about 15212.0399026561. The cubic root of 231406158 is about 613.9386439696.

The spelling of 231406158 in words is "two hundred thirty-one million, four hundred six thousand, one hundred fifty-eight".