26157031 has 2 divisors, whose sum is σ = 26157032. Its totient is φ = 26157030.

The previous prime is 26157017. The next prime is 26157071. The reversal of 26157031 is 13075162.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 26157031 - 2⁷ = 26156903 is a prime.

It is a super-2 number, since 2×26157031² = 1368380541469922, which contains 22 as substring.

It is equal to p_1633714 and since 26157031 and 1633714 have the same sum of digits, it is a Honaker prime.

It is a zygodrome in base 2 and base 13.

It is a junction number, because it is equal to n+sod(n) for n = 26156987 and 26157005.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (26157071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13078515 + 13078516.

It is an arithmetic number, because the mean of its divisors is an integer number (13078516).

Almost surely, 2^26157031 is an apocalyptic number.

26157031 is a deficient number, since it is larger than the sum of its proper divisors (1).

26157031 is an equidigital number, since it uses as much as digits as its factorization.

26157031 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1260, while the sum is 25.

The square root of 26157031 is about 5114.3944900643. The cubic root of 26157031 is about 296.8448251658.

The spelling of 26157031 in words is "twenty-six million, one hundred fifty-seven thousand, thirty-one".