249464123 has 2 divisors, whose sum is σ = 249464124. Its totient is φ = 249464122.

The previous prime is 249464107. The next prime is 249464183. The reversal of 249464123 is 321464942.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 249464123 - 2⁴ = 249464107 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (249464183) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 124732061 + 124732062.

It is an arithmetic number, because the mean of its divisors is an integer number (124732062).

Almost surely, 2^249464123 is an apocalyptic number.

249464123 is a deficient number, since it is larger than the sum of its proper divisors (1).

249464123 is an equidigital number, since it uses as much as digits as its factorization.

249464123 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 41472, while the sum is 35.

The square root of 249464123 is about 15794.4332915113. The cubic root of 249464123 is about 629.5100944852.

The spelling of 249464123 in words is "two hundred forty-nine million, four hundred sixty-four thousand, one hundred twenty-three".