157242908 has 12 divisors (see below), whose sum is σ = 276713640. Its totient is φ = 78181872.

The previous prime is 157242893. The next prime is 157242929. The reversal of 157242908 is 809242751.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 109091 + ... + 110522.

It is an arithmetic number, because the mean of its divisors is an integer number (23059470).

Almost surely, 2^157242908 is an apocalyptic number.

It is an amenable number.

157242908 is a deficient number, since it is larger than the sum of its proper divisors (119470732).

157242908 is a wasteful number, since it uses less digits than its factorization.

157242908 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 219796 (or 219794 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 38.

The square root of 157242908 is about 12539.6534242378. The cubic root of 157242908 is about 539.7471472820.

The spelling of 157242908 in words is "one hundred fifty-seven million, two hundred forty-two thousand, nine hundred eight".