127257131 has 2 divisors, whose sum is σ = 127257132. Its totient is φ = 127257130.

The previous prime is 127257127. The next prime is 127257149. The reversal of 127257131 is 131752721.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 127257131 - 2² = 127257127 is a prime.

It is a super-2 number, since 2×127257131² = 32388754780702322, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 127257094 and 127257103.

It is not a weakly prime, because it can be changed into another prime (127257161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63628565 + 63628566.

It is an arithmetic number, because the mean of its divisors is an integer number (63628566).

Almost surely, 2^127257131 is an apocalyptic number.

127257131 is a deficient number, since it is larger than the sum of its proper divisors (1).

127257131 is an equidigital number, since it uses as much as digits as its factorization.

127257131 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2940, while the sum is 29.

The square root of 127257131 is about 11280.8302442684. The cubic root of 127257131 is about 502.9915732811.

The spelling of 127257131 in words is "one hundred twenty-seven million, two hundred fifty-seven thousand, one hundred thirty-one".