268155031 has 2 divisors, whose sum is σ = 268155032. Its totient is φ = 268155030.

The previous prime is 268154981. The next prime is 268155077. The reversal of 268155031 is 130551862.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 268155031 - 2⁷ = 268154903 is a prime.

It is a super-2 number, since 2×268155031² = 143814241301221922, which contains 22 as substring.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 268154984 and 268155002.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (268155731) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 134077515 + 134077516.

It is an arithmetic number, because the mean of its divisors is an integer number (134077516).

Almost surely, 2^268155031 is an apocalyptic number.

268155031 is a deficient number, since it is larger than the sum of its proper divisors (1).

268155031 is an equidigital number, since it uses as much as digits as its factorization.

268155031 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7200, while the sum is 31.

The square root of 268155031 is about 16375.4398719546. The cubic root of 268155031 is about 644.8548686946.

The spelling of 268155031 in words is "two hundred sixty-eight million, one hundred fifty-five thousand, thirty-one".