157291 has 2 divisors, whose sum is σ = 157292. Its totient is φ = 157290.

The previous prime is 157279. The next prime is 157303. The reversal of 157291 is 192751.

It is a balanced prime because it is at equal distance from previous prime (157279) and next prime (157303).

It is a cyclic number.

It is not a de Polignac number, because 157291 - 2⁵ = 157259 is a prime.

It is a plaindrome in base 16.

It is not a weakly prime, because it can be changed into another prime (157211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78645 + 78646.

It is an arithmetic number, because the mean of its divisors is an integer number (78646).

2¹⁵⁷²⁹¹ is an apocalyptic number.

157291 is a deficient number, since it is larger than the sum of its proper divisors (1).

157291 is an equidigital number, since it uses as much as digits as its factorization.

157291 is an evil number, because the sum of its binary digits is even.

The product of its digits is 630, while the sum is 25.

The square root of 157291 is about 396.5992939984. The cubic root of 157291 is about 53.9802168044.

The spelling of 157291 in words is "one hundred fifty-seven thousand, two hundred ninety-one".