1273231457 has 16 divisors (see below), whose sum is σ = 1381570560. Its totient is φ = 1170606528.

The previous prime is 1273231429. The next prime is 1273231489. The reversal of 1273231457 is 7541323721.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 1273231457 - 2²⁰ = 1272182881 is a prime.

It is a super-2 number, since 2×1273231457² = 3242236686188685698, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1273231357) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 37808 + ... + 63054.

It is an arithmetic number, because the mean of its divisors is an integer number (86348160).

Almost surely, 2^1273231457 is an apocalyptic number.

It is an amenable number.

1273231457 is a deficient number, since it is larger than the sum of its proper divisors (108339103).

1273231457 is a wasteful number, since it uses less digits than its factorization.

1273231457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25360.

The product of its digits is 35280, while the sum is 35.

The square root of 1273231457 is about 35682.3689936641. The cubic root of 1273231457 is about 1083.8498453641.

The spelling of 1273231457 in words is "one billion, two hundred seventy-three million, two hundred thirty-one thousand, four hundred fifty-seven".