263376131 has 2 divisors, whose sum is σ = 263376132. Its totient is φ = 263376130.

The previous prime is 263376089. The next prime is 263376137. The reversal of 263376131 is 131673362.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-263376131 is a prime.

It is a super-2 number, since 2×263376131² = 138733972761058322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (263376137) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 131688065 + 131688066.

It is an arithmetic number, because the mean of its divisors is an integer number (131688066).

Almost surely, 2^263376131 is an apocalyptic number.

263376131 is a deficient number, since it is larger than the sum of its proper divisors (1).

263376131 is an equidigital number, since it uses as much as digits as its factorization.

263376131 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 13608, while the sum is 32.

The square root of 263376131 is about 16228.8672124705. The cubic root of 263376131 is about 641.0011438815.

The spelling of 263376131 in words is "two hundred sixty-three million, three hundred seventy-six thousand, one hundred thirty-one".