157951 has 2 divisors, whose sum is σ = 157952. Its totient is φ = 157950.

The previous prime is 157933. The next prime is 157991. The reversal of 157951 is 159751.

157951 = T₃₂₃ + T₃₂₄ + T₃₂₅.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 157951 - 2⁷ = 157823 is a prime.

It is a plaindrome in base 16.

It is a nialpdrome in base 11.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (157901) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78975 + 78976.

It is an arithmetic number, because the mean of its divisors is an integer number (78976).

2¹⁵⁷⁹⁵¹ is an apocalyptic number.

157951 is the 325-th centered triangular number.

157951 is a deficient number, since it is larger than the sum of its proper divisors (1).

157951 is an equidigital number, since it uses as much as digits as its factorization.

157951 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1575, while the sum is 28.

The square root of 157951 is about 397.4304970684. The cubic root of 157951 is about 54.0556125744.

The spelling of 157951 in words is "one hundred fifty-seven thousand, nine hundred fifty-one".