158811432 has 64 divisors (see below), whose sum is σ = 428924160. Its totient is φ = 48710400.

The previous prime is 158811383. The next prime is 158811439. The reversal of 158811432 is 234118851.

158811432 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 158811393 and 158811402.

It is not an unprimeable number, because it can be changed into a prime (158811439) 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 15 ways as a sum of consecutive naturals, for example, 133882 + ... + 135062.

It is an arithmetic number, because the mean of its divisors is an integer number (6701940).

Almost surely, 2^158811432 is an apocalyptic number.

158811432 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 158811432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (214462080).

158811432 is an abundant number, since it is smaller than the sum of its proper divisors (270112728).

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

158811432 is a wasteful number, since it uses less digits than its factorization.

158811432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1634 (or 1630 counting only the distinct ones).

The product of its digits is 7680, while the sum is 33.

The square root of 158811432 is about 12602.0407871106. The cubic root of 158811432 is about 541.5359016992.

The spelling of 158811432 in words is "one hundred fifty-eight million, eight hundred eleven thousand, four hundred thirty-two".