157720862 has 32 divisors (see below), whose sum is σ = 275469600. Its totient is φ = 67091328.

The previous prime is 157720853. The next prime is 157720873. The reversal of 157720862 is 268027751.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 13964 + ... + 22592.

It is an arithmetic number, because the mean of its divisors is an integer number (8608425).

Almost surely, 2^157720862 is an apocalyptic number.

157720862 is a deficient number, since it is larger than the sum of its proper divisors (117748738).

157720862 is a wasteful number, since it uses less digits than its factorization.

157720862 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8700.

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

The square root of 157720862 is about 12558.6966680464. The cubic root of 157720862 is about 540.2934641728.

The spelling of 157720862 in words is "one hundred fifty-seven million, seven hundred twenty thousand, eight hundred sixty-two".