231150142 has 4 divisors (see below), whose sum is σ = 346725216. Its totient is φ = 115575070.

The previous prime is 231150113. The next prime is 231150163. The reversal of 231150142 is 241051132.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 57787534 + ... + 57787537.

It is an arithmetic number, because the mean of its divisors is an integer number (86681304).

Almost surely, 2^231150142 is an apocalyptic number.

231150142 is a deficient number, since it is larger than the sum of its proper divisors (115575074).

231150142 is a wasteful number, since it uses less digits than its factorization.

231150142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115575073.

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 231150142 is about 15203.6226604056. The cubic root of 231150142 is about 613.7121502619.

The spelling of 231150142 in words is "two hundred thirty-one million, one hundred fifty thousand, one hundred forty-two".