158490929 has 2 divisors, whose sum is σ = 158490930. Its totient is φ = 158490928.

The previous prime is 158490911. The next prime is 158490971. The reversal of 158490929 is 929094851.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 122766400 + 35724529 = 11080^2 + 5977^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-158490929 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (158496929) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 79245464 + 79245465.

It is an arithmetic number, because the mean of its divisors is an integer number (79245465).

Almost surely, 2^158490929 is an apocalyptic number.

It is an amenable number.

158490929 is a deficient number, since it is larger than the sum of its proper divisors (1).

158490929 is an equidigital number, since it uses as much as digits as its factorization.

158490929 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 233280, while the sum is 47.

The square root of 158490929 is about 12589.3180514276. The cubic root of 158490929 is about 541.1713587347.

The spelling of 158490929 in words is "one hundred fifty-eight million, four hundred ninety thousand, nine hundred twenty-nine".