190157512 has 16 divisors (see below), whose sum is σ = 377518860. Its totient is φ = 89485824.

The previous prime is 190157501. The next prime is 190157521. The reversal of 190157512 is 215751091.

It can be written as a sum of positive squares in 2 ways, for example, as 186213316 + 3944196 = 13646^2 + 1986^2 .

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, 698973 + ... + 699244.

Almost surely, 2^190157512 is an apocalyptic number.

It is an amenable number.

190157512 is a deficient number, since it is larger than the sum of its proper divisors (187361348).

190157512 is a wasteful number, since it uses less digits than its factorization.

190157512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1398240 (or 1398236 counting only the distinct ones).

The product of its (nonzero) digits is 3150, while the sum is 31.

The square root of 190157512 is about 13789.7611291857. The cubic root of 190157512 is about 575.0485272214.

The spelling of 190157512 in words is "one hundred ninety million, one hundred fifty-seven thousand, five hundred twelve".