163151812 has 6 divisors (see below), whose sum is σ = 285515678. Its totient is φ = 81575904.

The previous prime is 163151797. The next prime is 163151831. The reversal of 163151812 is 218151361.

It can be written as a sum of positive squares in only one way, i.e., 155401156 + 7750656 = 12466^2 + 2784^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20393973 + ... + 20393980.

Almost surely, 2^163151812 is an apocalyptic number.

It is an amenable number.

163151812 is a deficient number, since it is larger than the sum of its proper divisors (122363866).

163151812 is a wasteful number, since it uses less digits than its factorization.

163151812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40787957 (or 40787955 counting only the distinct ones).

The product of its digits is 1440, while the sum is 28.

The square root of 163151812 is about 12773.0893678859. The cubic root of 163151812 is about 546.4250917224.

The spelling of 163151812 in words is "one hundred sixty-three million, one hundred fifty-one thousand, eight hundred twelve".