45249493 has 2 divisors, whose sum is σ = 45249494. Its totient is φ = 45249492.

The previous prime is 45249419. The next prime is 45249509. The reversal of 45249493 is 39494254.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 39212644 + 6036849 = 6262^2 + 2457^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-45249493 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (45249293) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22624746 + 22624747.

It is an arithmetic number, because the mean of its divisors is an integer number (22624747).

Almost surely, 2^45249493 is an apocalyptic number.

It is an amenable number.

45249493 is a deficient number, since it is larger than the sum of its proper divisors (1).

45249493 is an equidigital number, since it uses as much as digits as its factorization.

45249493 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 155520, while the sum is 40.

The square root of 45249493 is about 6726.7743384181. The cubic root of 45249493 is about 356.3454674687.

The spelling of 45249493 in words is "forty-five million, two hundred forty-nine thousand, four hundred ninety-three".