157142837 has 2 divisors, whose sum is σ = 157142838. Its totient is φ = 157142836.

The previous prime is 157142833. The next prime is 157142857. The reversal of 157142837 is 738241751.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 93876721 + 63266116 = 9689^2 + 7954^2 .

It is a cyclic number.

It is not a de Polignac number, because 157142837 - 2² = 157142833 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 157142837.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (157142833) 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, 78571418 + 78571419.

It is an arithmetic number, because the mean of its divisors is an integer number (78571419).

Almost surely, 2^157142837 is an apocalyptic number.

It is an amenable number.

157142837 is a deficient number, since it is larger than the sum of its proper divisors (1).

157142837 is an equidigital number, since it uses as much as digits as its factorization.

157142837 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 47040, while the sum is 38.

The square root of 157142837 is about 12535.6626071381. The cubic root of 157142837 is about 539.6326227762.

The spelling of 157142837 in words is "one hundred fifty-seven million, one hundred forty-two thousand, eight hundred thirty-seven".