127157539 has 2 divisors, whose sum is σ = 127157540. Its totient is φ = 127157538.

The previous prime is 127157533. The next prime is 127157543. The reversal of 127157539 is 935751721.

It is a strong prime.

It is an emirp because it is prime and its reverse (935751721) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 127157539 - 2⁵ = 127157507 is a prime.

It is not a weakly prime, because it can be changed into another prime (127157533) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63578769 + 63578770.

It is an arithmetic number, because the mean of its divisors is an integer number (63578770).

Almost surely, 2^127157539 is an apocalyptic number.

127157539 is a deficient number, since it is larger than the sum of its proper divisors (1).

127157539 is an equidigital number, since it uses as much as digits as its factorization.

127157539 is an evil number, because the sum of its binary digits is even.

The product of its digits is 66150, while the sum is 40.

The square root of 127157539 is about 11276.4151661776. The cubic root of 127157539 is about 502.8603245514.

The spelling of 127157539 in words is "one hundred twenty-seven million, one hundred fifty-seven thousand, five hundred thirty-nine".