150191812 has 12 divisors (see below), whose sum is σ = 271899180. Its totient is φ = 72506336.

The previous prime is 150191791. The next prime is 150191813. The reversal of 150191812 is 218191051.

It can be written as a sum of positive squares in 2 ways, for example, as 63776196 + 86415616 = 7986^2 + 9296^2 .

It is not an unprimeable number, because it can be changed into a prime (150191813) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 647263 + ... + 647494.

It is an arithmetic number, because the mean of its divisors is an integer number (22658265).

Almost surely, 2^150191812 is an apocalyptic number.

It is an amenable number.

150191812 is a deficient number, since it is larger than the sum of its proper divisors (121707368).

150191812 is a wasteful number, since it uses less digits than its factorization.

150191812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1294790 (or 1294788 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 28.

The square root of 150191812 is about 12255.2769042564. The cubic root of 150191812 is about 531.5556666408. Note that the first 3 decimals are identical.

The spelling of 150191812 in words is "one hundred fifty million, one hundred ninety-one thousand, eight hundred twelve".