231320158 has 8 divisors (see below), whose sum is σ = 348742152. Its totient is φ = 115072776.

The previous prime is 231320149. The next prime is 231320161. The reversal of 231320158 is 851023132.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 293160 + ... + 293947.

It is an arithmetic number, because the mean of its divisors is an integer number (43592769).

Almost surely, 2^231320158 is an apocalyptic number.

231320158 is a deficient number, since it is larger than the sum of its proper divisors (117421994).

231320158 is a wasteful number, since it uses less digits than its factorization.

231320158 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 587306.

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 231320158 is about 15209.2129316411. The cubic root of 231320158 is about 613.8625796362.

The spelling of 231320158 in words is "two hundred thirty-one million, three hundred twenty thousand, one hundred fifty-eight".