157135291 has 2 divisors, whose sum is σ = 157135292. Its totient is φ = 157135290.

The previous prime is 157135219. The next prime is 157135309. The reversal of 157135291 is 192531751.

Together with previous prime (157135219) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 157135291 - 2¹¹ = 157133243 is a prime.

It is not a weakly prime, because it can be changed into another prime (157135211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78567645 + 78567646.

It is an arithmetic number, because the mean of its divisors is an integer number (78567646).

Almost surely, 2^157135291 is an apocalyptic number.

157135291 is a deficient number, since it is larger than the sum of its proper divisors (1).

157135291 is an equidigital number, since it uses as much as digits as its factorization.

157135291 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 9450, while the sum is 34.

The square root of 157135291 is about 12535.3616222269. The cubic root of 157135291 is about 539.6239849173.

The spelling of 157135291 in words is "one hundred fifty-seven million, one hundred thirty-five thousand, two hundred ninety-one".