158911128 has 24 divisors (see below), whose sum is σ = 430384500. Its totient is φ = 52970352.

The previous prime is 158911127. The next prime is 158911141. The reversal of 158911128 is 821119851.

It is a tau number, because it is divible by the number of its divisors (24).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 158911092 and 158911101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (158911127) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 1103478 + ... + 1103621.

Almost surely, 2^158911128 is an apocalyptic number.

158911128 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

158911128 is an abundant number, since it is smaller than the sum of its proper divisors (271473372).

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

158911128 is a wasteful number, since it uses less digits than its factorization.

158911128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2207111 (or 2207104 counting only the distinct ones).

The product of its digits is 5760, while the sum is 36.

The square root of 158911128 is about 12605.9957163248. The cubic root of 158911128 is about 541.6491967962.

The spelling of 158911128 in words is "one hundred fifty-eight million, nine hundred eleven thousand, one hundred twenty-eight".