157979762 has 8 divisors (see below), whose sum is σ = 245141100. Its totient is φ = 76266064.

The previous prime is 157979753. The next prime is 157979777. The reversal of 157979762 is 267979751.

It is a Cunningham number, because it is equal to 12569²+1.

It can be written as a sum of positive squares in 2 ways, for example, as 157979761 + 1 = 12569^2 + 1^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

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 in 3 ways as a sum of consecutive naturals, for example, 1361837 + ... + 1361952.

Almost surely, 2^157979762 is an apocalyptic number.

157979762 is a deficient number, since it is larger than the sum of its proper divisors (87161338).

157979762 is a wasteful number, since it uses less digits than its factorization.

157979762 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2723820.

The product of its digits is 1666980, while the sum is 53.

The square root of 157979762 is about 12569.0000397804. Note that the first 4 decimals coincide. The cubic root of 157979762 is about 540.5889345092.

The spelling of 157979762 in words is "one hundred fifty-seven million, nine hundred seventy-nine thousand, seven hundred sixty-two".