1272548131 has 2 divisors, whose sum is σ = 1272548132. Its totient is φ = 1272548130.

The previous prime is 1272548129. The next prime is 1272548239. The reversal of 1272548131 is 1318452721.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1272548131 - 2¹ = 1272548129 is a prime.

It is a super-2 number, since 2×1272548131² = 3238757491423186322, which contains 22 as substring.

Together with 1272548129, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (1272543131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 636274065 + 636274066.

It is an arithmetic number, because the mean of its divisors is an integer number (636274066).

Almost surely, 2^1272548131 is an apocalyptic number.

1272548131 is a deficient number, since it is larger than the sum of its proper divisors (1).

1272548131 is an equidigital number, since it uses as much as digits as its factorization.

1272548131 is an evil number, because the sum of its binary digits is even.

The product of its digits is 13440, while the sum is 34.

The square root of 1272548131 is about 35672.7925876290. The cubic root of 1272548131 is about 1083.6559148448.

The spelling of 1272548131 in words is "one billion, two hundred seventy-two million, five hundred forty-eight thousand, one hundred thirty-one".