265436131 has 2 divisors, whose sum is σ = 265436132. Its totient is φ = 265436130.

The previous prime is 265436107. The next prime is 265436141. The reversal of 265436131 is 131634562.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-265436131 is a prime.

It is a super-2 number, since 2×265436131² = 140912679280498322, 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 = 265436093 and 265436102.

It is not a weakly prime, because it can be changed into another prime (265436141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 132718065 + 132718066.

It is an arithmetic number, because the mean of its divisors is an integer number (132718066).

Almost surely, 2^265436131 is an apocalyptic number.

265436131 is a deficient number, since it is larger than the sum of its proper divisors (1).

265436131 is an equidigital number, since it uses as much as digits as its factorization.

265436131 is an evil number, because the sum of its binary digits is even.

The product of its digits is 12960, while the sum is 31.

The square root of 265436131 is about 16292.2107462431. The cubic root of 265436131 is about 642.6680053415.

The spelling of 265436131 in words is "two hundred sixty-five million, four hundred thirty-six thousand, one hundred thirty-one".