265548131 has 2 divisors, whose sum is σ = 265548132. Its totient is φ = 265548130.

The previous prime is 265548119. The next prime is 265548137. The reversal of 265548131 is 131845562.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 265548131 - 2¹⁸ = 265285987 is a prime.

It is a super-2 number, since 2×265548131² = 141031619755186322, which contains 22 as substring.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 265548091 and 265548100.

It is not a weakly prime, because it can be changed into another prime (265548137) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 132774065 + 132774066.

It is an arithmetic number, because the mean of its divisors is an integer number (132774066).

Almost surely, 2^265548131 is an apocalyptic number.

265548131 is a deficient number, since it is larger than the sum of its proper divisors (1).

265548131 is an equidigital number, since it uses as much as digits as its factorization.

265548131 is an evil number, because the sum of its binary digits is even.

The product of its digits is 28800, while the sum is 35.

The square root of 265548131 is about 16295.6476091010. The cubic root of 265548131 is about 642.7583832602.

The spelling of 265548131 in words is "two hundred sixty-five million, five hundred forty-eight thousand, one hundred thirty-one".