158125812 has 24 divisors (see below), whose sum is σ = 397342176. Its totient is φ = 48654048.

The previous prime is 158125783. The next prime is 158125819. The reversal of 158125812 is 218521851.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (158125819) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 506658 + ... + 506969.

It is an arithmetic number, because the mean of its divisors is an integer number (16555924).

Almost surely, 2^158125812 is an apocalyptic number.

158125812 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

158125812 is an abundant number, since it is smaller than the sum of its proper divisors (239216364).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

158125812 is a wasteful number, since it uses less digits than its factorization.

158125812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1013647 (or 1013645 counting only the distinct ones).

The product of its digits is 6400, while the sum is 33.

The square root of 158125812 is about 12574.8086267744. The cubic root of 158125812 is about 540.7554720772.

The spelling of 158125812 in words is "one hundred fifty-eight million, one hundred twenty-five thousand, eight hundred twelve".