1156436311157 has 2 divisors, whose sum is σ = 1156436311158. Its totient is φ = 1156436311156.

The previous prime is 1156436311111. The next prime is 1156436311183. The reversal of 1156436311157 is 7511136346511.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 739670521681 + 416765789476 = 860041^2 + 645574^2 .

It is a cyclic number.

It is not a de Polignac number, because 1156436311157 - 2²⁸ = 1156167875701 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1156436311187) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 578218155578 + 578218155579.

It is an arithmetic number, because the mean of its divisors is an integer number (578218155579).

Almost surely, 2^{1156436311157} is an apocalyptic number.

It is an amenable number.

1156436311157 is a deficient number, since it is larger than the sum of its proper divisors (1).

1156436311157 is an equidigital number, since it uses as much as digits as its factorization.

1156436311157 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 226800, while the sum is 44.

The spelling of 1156436311157 in words is "one trillion, one hundred fifty-six billion, four hundred thirty-six million, three hundred eleven thousand, one hundred fifty-seven".