26133931 has 2 divisors, whose sum is σ = 26133932. Its totient is φ = 26133930.

The previous prime is 26133917. The next prime is 26133941. The reversal of 26133931 is 13933162.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 26133931 - 2¹³ = 26125739 is a prime.

It is a super-2 number, since 2×26133931² = 1365964699025522, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 26133931.

It is not a weakly prime, because it can be changed into another prime (26133941) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13066965 + 13066966.

It is an arithmetic number, because the mean of its divisors is an integer number (13066966).

Almost surely, 2^26133931 is an apocalyptic number.

26133931 is a deficient number, since it is larger than the sum of its proper divisors (1).

26133931 is an equidigital number, since it uses as much as digits as its factorization.

26133931 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2916, while the sum is 28.

The square root of 26133931 is about 5112.1356593893. The cubic root of 26133931 is about 296.7574154616.

The spelling of 26133931 in words is "twenty-six million, one hundred thirty-three thousand, nine hundred thirty-one".