158381929 has 8 divisors (see below), whose sum is σ = 166911840. Its totient is φ = 149871456.

The previous prime is 158381921. The next prime is 158381953. The reversal of 158381929 is 929183851.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 158381929 - 2³ = 158381921 is a prime.

It is a super-2 number, since 2×158381929² = 50169670867522082, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (158381921) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13734 + ... + 22480.

It is an arithmetic number, because the mean of its divisors is an integer number (20863980).

Almost surely, 2^158381929 is an apocalyptic number.

158381929 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

158381929 is a deficient number, since it is larger than the sum of its proper divisors (8529911).

158381929 is an equidigital number, since it uses as much as digits as its factorization.

158381929 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9719.

The product of its digits is 155520, while the sum is 46.

The square root of 158381929 is about 12584.9882399627. The cubic root of 158381929 is about 541.0472691810.

The spelling of 158381929 in words is "one hundred fifty-eight million, three hundred eighty-one thousand, nine hundred twenty-nine".