157188628 has 6 divisors (see below), whose sum is σ = 275080106. Its totient is φ = 78594312.

The previous prime is 157188589. The next prime is 157188649. The reversal of 157188628 is 826881751.

It can be written as a sum of positive squares in only one way, i.e., 106750224 + 50438404 = 10332^2 + 7102^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19648575 + ... + 19648582.

Almost surely, 2^157188628 is an apocalyptic number.

It is an amenable number.

157188628 is a deficient number, since it is larger than the sum of its proper divisors (117891478).

157188628 is a wasteful number, since it uses less digits than its factorization.

157188628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39297161 (or 39297159 counting only the distinct ones).

The product of its digits is 215040, while the sum is 46.

The square root of 157188628 is about 12537.4889032852. The cubic root of 157188628 is about 539.6850335173.

The spelling of 157188628 in words is "one hundred fifty-seven million, one hundred eighty-eight thousand, six hundred twenty-eight".