158890107 has 4 divisors (see below), whose sum is σ = 211853480. Its totient is φ = 105926736.

The previous prime is 158890087. The next prime is 158890111. The reversal of 158890107 is 701098851.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 158890107 - 2¹⁴ = 158873723 is a prime.

It is a super-2 number, since 2×158890107² = 50492132204942898, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (158880107) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26481682 + ... + 26481687.

It is an arithmetic number, because the mean of its divisors is an integer number (52963370).

Almost surely, 2^158890107 is an apocalyptic number.

158890107 is a deficient number, since it is larger than the sum of its proper divisors (52963373).

158890107 is an equidigital number, since it uses as much as digits as its factorization.

158890107 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52963372.

The product of its (nonzero) digits is 20160, while the sum is 39.

The square root of 158890107 is about 12605.1619188331. The cubic root of 158890107 is about 541.6253123563.

The spelling of 158890107 in words is "one hundred fifty-eight million, eight hundred ninety thousand, one hundred seven".