1157215127 has 2 divisors, whose sum is σ = 1157215128. Its totient is φ = 1157215126.

The previous prime is 1157215117. The next prime is 1157215181. The reversal of 1157215127 is 7215127511.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1157215127 is a prime.

It is a super-2 number, since 2×1157215127² = 2678293700315252258, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1157215093 and 1157215102.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1157215117) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 578607563 + 578607564.

It is an arithmetic number, because the mean of its divisors is an integer number (578607564).

Almost surely, 2^1157215127 is an apocalyptic number.

1157215127 is a deficient number, since it is larger than the sum of its proper divisors (1).

1157215127 is an equidigital number, since it uses as much as digits as its factorization.

1157215127 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4900, while the sum is 32.

The square root of 1157215127 is about 34017.8648212965. The cubic root of 1157215127 is about 1049.8760630739.

The spelling of 1157215127 in words is "one billion, one hundred fifty-seven million, two hundred fifteen thousand, one hundred twenty-seven".