268157031 has 12 divisors (see below), whose sum is σ = 379813032. Its totient is φ = 168254848.

The previous prime is 268157009. The next prime is 268157033. The reversal of 268157031 is 130751862.

It is a de Polignac number, because none of the positive numbers 2^k-268157031 is a prime.

It is a super-2 number, since 2×268157031² = 143816386549469922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 268156983 and 268157001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (268157033) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 153780 + ... + 155513.

It is an arithmetic number, because the mean of its divisors is an integer number (31651086).

Almost surely, 2^268157031 is an apocalyptic number.

268157031 is a deficient number, since it is larger than the sum of its proper divisors (111656001).

268157031 is a wasteful number, since it uses less digits than its factorization.

268157031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 309330 (or 309313 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 33.

The square root of 268157031 is about 16375.5009389026. The cubic root of 268157031 is about 644.8564718798.

The spelling of 268157031 in words is "two hundred sixty-eight million, one hundred fifty-seven thousand, thirty-one".