231148942 has 8 divisors (see below), whose sum is σ = 361798416. Its totient is φ = 110549472.

The previous prime is 231148921. The next prime is 231148969. The reversal of 231148942 is 249841132.

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

It is a junction number, because it is equal to n+sod(n) for n = 231148898 and 231148907.

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, 2512443 + ... + 2512534.

It is an arithmetic number, because the mean of its divisors is an integer number (45224802).

Almost surely, 2^231148942 is an apocalyptic number.

231148942 is a deficient number, since it is larger than the sum of its proper divisors (130649474).

231148942 is a wasteful number, since it uses less digits than its factorization.

231148942 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5025002.

The product of its digits is 13824, while the sum is 34.

The square root of 231148942 is about 15203.5831960759. The cubic root of 231148942 is about 613.7110882453.

The spelling of 231148942 in words is "two hundred thirty-one million, one hundred forty-eight thousand, nine hundred forty-two".