158422188 has 12 divisors (see below), whose sum is σ = 369651800. Its totient is φ = 52807392.

The previous prime is 158422177. The next prime is 158422207. The reversal of 158422188 is 881224851.

It is a tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

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, 6600913 + ... + 6600936.

Almost surely, 2^158422188 is an apocalyptic number.

It is an amenable number.

158422188 is an abundant number, since it is smaller than the sum of its proper divisors (211229612).

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

158422188 is a wasteful number, since it uses less digits than its factorization.

158422188 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13201856 (or 13201854 counting only the distinct ones).

The product of its digits is 40960, while the sum is 39.

The square root of 158422188 is about 12586.5876233394. The cubic root of 158422188 is about 541.0931081157.

The spelling of 158422188 in words is "one hundred fifty-eight million, four hundred twenty-two thousand, one hundred eighty-eight".