157814131 has 2 divisors, whose sum is σ = 157814132. Its totient is φ = 157814130.

The previous prime is 157814123. The next prime is 157814147. The reversal of 157814131 is 131418751.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (131418751) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 157814131 - 2³ = 157814123 is a prime.

It is a super-2 number, since 2×157814131² = 49810599886570322, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 157814093 and 157814102.

It is not a weakly prime, because it can be changed into another prime (157817131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78907065 + 78907066.

It is an arithmetic number, because the mean of its divisors is an integer number (78907066).

Almost surely, 2^157814131 is an apocalyptic number.

157814131 is a deficient number, since it is larger than the sum of its proper divisors (1).

157814131 is an equidigital number, since it uses as much as digits as its factorization.

157814131 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3360, while the sum is 31.

The square root of 157814131 is about 12562.4094424597. The cubic root of 157814131 is about 540.3999449102.

The spelling of 157814131 in words is "one hundred fifty-seven million, eight hundred fourteen thousand, one hundred thirty-one".