158940907 has 4 divisors (see below), whose sum is σ = 159027640. Its totient is φ = 158854176.

The previous prime is 158940839. The next prime is 158940911. The reversal of 158940907 is 709049851.

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

It is a cyclic number.

It is not a de Polignac number, because 158940907 - 2⁷ = 158940779 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (158940407) 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, 40557 + ... + 44302.

It is an arithmetic number, because the mean of its divisors is an integer number (39756910).

Almost surely, 2^158940907 is an apocalyptic number.

158940907 is a deficient number, since it is larger than the sum of its proper divisors (86733).

158940907 is an equidigital number, since it uses as much as digits as its factorization.

158940907 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86732.

The product of its (nonzero) digits is 90720, while the sum is 43.

The square root of 158940907 is about 12607.1768052963. The cubic root of 158940907 is about 541.6830286287.

The spelling of 158940907 in words is "one hundred fifty-eight million, nine hundred forty thousand, nine hundred seven".