1157664127 has 2 divisors, whose sum is σ = 1157664128. Its totient is φ = 1157664126.

The previous prime is 1157664089. The next prime is 1157664139. The reversal of 1157664127 is 7214667511.

It is a strong prime.

It is an emirp because it is prime and its reverse (7214667511) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1157664127 - 2¹⁹ = 1157139839 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1157664127.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1157664187) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 578832063 + 578832064.

It is an arithmetic number, because the mean of its divisors is an integer number (578832064).

Almost surely, 2^1157664127 is an apocalyptic number.

1157664127 is a deficient number, since it is larger than the sum of its proper divisors (1).

1157664127 is an equidigital number, since it uses as much as digits as its factorization.

1157664127 is an evil number, because the sum of its binary digits is even.

The product of its digits is 70560, while the sum is 40.

The square root of 1157664127 is about 34024.4636548469. The cubic root of 1157664127 is about 1050.0118296475.

The spelling of 1157664127 in words is "one billion, one hundred fifty-seven million, six hundred sixty-four thousand, one hundred twenty-seven".