158906085 has 16 divisors (see below), whose sum is σ = 273807744. Its totient is φ = 78230592.

The previous prime is 158906053. The next prime is 158906087. The reversal of 158906085 is 580609851.

It is not a de Polignac number, because 158906085 - 2⁵ = 158906053 is a prime.

It is a super-2 number, since 2×158906085² = 50502287700054450, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (158906087) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 407257 + ... + 407646.

It is an arithmetic number, because the mean of its divisors is an integer number (17112984).

Almost surely, 2^158906085 is an apocalyptic number.

158906085 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

158906085 is a deficient number, since it is larger than the sum of its proper divisors (114901659).

158906085 is a wasteful number, since it uses less digits than its factorization.

158906085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 814924.

The product of its (nonzero) digits is 86400, while the sum is 42.

The square root of 158906085 is about 12605.7956908717. The cubic root of 158906085 is about 541.6434670406.

The spelling of 158906085 in words is "one hundred fifty-eight million, nine hundred six thousand, eighty-five".