249158929 has 2 divisors, whose sum is σ = 249158930. Its totient is φ = 249158928.

The previous prime is 249158821. The next prime is 249158941. The reversal of 249158929 is 929851942.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 180848704 + 68310225 = 13448^2 + 8265^2 .

It is a cyclic number.

It is not a de Polignac number, because 249158929 - 2⁷ = 249158801 is a prime.

It is not a weakly prime, because it can be changed into another prime (249158029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 124579464 + 124579465.

It is an arithmetic number, because the mean of its divisors is an integer number (124579465).

Almost surely, 2^249158929 is an apocalyptic number.

It is an amenable number.

249158929 is a deficient number, since it is larger than the sum of its proper divisors (1).

249158929 is an equidigital number, since it uses as much as digits as its factorization.

249158929 is an evil number, because the sum of its binary digits is even.

The product of its digits is 466560, while the sum is 49.

The square root of 249158929 is about 15784.7688928283. The cubic root of 249158929 is about 629.2532758530.

The spelling of 249158929 in words is "two hundred forty-nine million, one hundred fifty-eight thousand, nine hundred twenty-nine".