158112129 has 32 divisors (see below), whose sum is σ = 254894080. Its totient is φ = 85162752.

The previous prime is 158112109. The next prime is 158112131. The reversal of 158112129 is 921211851.

It is not a de Polignac number, because 158112129 - 2⁷ = 158112001 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 158112096 and 158112105.

It is not an unprimeable number, because it can be changed into a prime (158112109) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 88089 + ... + 89865.

It is an arithmetic number, because the mean of its divisors is an integer number (7965440).

Almost surely, 2^158112129 is an apocalyptic number.

158112129 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

158112129 is a deficient number, since it is larger than the sum of its proper divisors (96781951).

158112129 is a wasteful number, since it uses less digits than its factorization.

158112129 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2029.

The product of its digits is 1440, while the sum is 30.

The square root of 158112129 is about 12574.2645510582. The cubic root of 158112129 is about 540.7398740112.

The spelling of 158112129 in words is "one hundred fifty-eight million, one hundred twelve thousand, one hundred twenty-nine".