158864522 has 16 divisors (see below), whose sum is σ = 248381952. Its totient is φ = 76120560.

The previous prime is 158864501. The next prime is 158864539. The reversal of 158864522 is 225468851.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 158864522.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6053 + ... + 18824.

It is an arithmetic number, because the mean of its divisors is an integer number (15523872).

Almost surely, 2^158864522 is an apocalyptic number.

158864522 is a deficient number, since it is larger than the sum of its proper divisors (89517430).

158864522 is a wasteful number, since it uses less digits than its factorization.

158864522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25013.

The product of its digits is 153600, while the sum is 41.

The square root of 158864522 is about 12604.1470159626. The cubic root of 158864522 is about 541.5962393747.

The spelling of 158864522 in words is "one hundred fifty-eight million, eight hundred sixty-four thousand, five hundred twenty-two".