45419947 has 2 divisors, whose sum is σ = 45419948. Its totient is φ = 45419946.

The previous prime is 45419921. The next prime is 45419987. The reversal of 45419947 is 74991454.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 45419947 - 2¹⁵ = 45387179 is a prime.

It is not a weakly prime, because it can be changed into another prime (45419987) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22709973 + 22709974.

It is an arithmetic number, because the mean of its divisors is an integer number (22709974).

Almost surely, 2^45419947 is an apocalyptic number.

45419947 is a deficient number, since it is larger than the sum of its proper divisors (1).

45419947 is an equidigital number, since it uses as much as digits as its factorization.

45419947 is an evil number, because the sum of its binary digits is even.

The product of its digits is 181440, while the sum is 43.

The square root of 45419947 is about 6739.4322461169. The cubic root of 45419947 is about 356.7923557176.

The spelling of 45419947 in words is "forty-five million, four hundred nineteen thousand, nine hundred forty-seven".