157763812 has 12 divisors (see below), whose sum is σ = 280613116. Its totient is φ = 77588640.

The previous prime is 157763789. The next prime is 157763813. The reversal of 157763812 is 218367751.

It can be written as a sum of positive squares in 2 ways, for example, as 84934656 + 72829156 = 9216^2 + 8534^2 .

It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (157763813) by changing a digit.

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, 323043 + ... + 323530.

Almost surely, 2^157763812 is an apocalyptic number.

It is an amenable number.

157763812 is a deficient number, since it is larger than the sum of its proper divisors (122849304).

157763812 is a wasteful number, since it uses less digits than its factorization.

157763812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 646638 (or 646636 counting only the distinct ones).

The product of its digits is 70560, while the sum is 40.

The square root of 157763812 is about 12560.4065220836. The cubic root of 157763812 is about 540.3425033379.

The spelling of 157763812 in words is "one hundred fifty-seven million, seven hundred sixty-three thousand, eight hundred twelve".