45249419 has 2 divisors, whose sum is σ = 45249420. Its totient is φ = 45249418.

The previous prime is 45249389. The next prime is 45249493. The reversal of 45249419 is 91494254.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 45249419 - 2⁸ = 45249163 is a prime.

It is a super-2 number, since 2×45249419² = 4095019839675122, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (45245419) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22624709 + 22624710.

It is an arithmetic number, because the mean of its divisors is an integer number (22624710).

Almost surely, 2^45249419 is an apocalyptic number.

45249419 is a deficient number, since it is larger than the sum of its proper divisors (1).

45249419 is an equidigital number, since it uses as much as digits as its factorization.

45249419 is an evil number, because the sum of its binary digits is even.

The product of its digits is 51840, while the sum is 38.

The square root of 45249419 is about 6726.7688380083. The cubic root of 45249419 is about 356.3452732155.

The spelling of 45249419 in words is "forty-five million, two hundred forty-nine thousand, four hundred nineteen".