45124447 has 2 divisors, whose sum is σ = 45124448. Its totient is φ = 45124446.

The previous prime is 45124441. The next prime is 45124463. The reversal of 45124447 is 74442154.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-45124447 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (45124441) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22562223 + 22562224.

It is an arithmetic number, because the mean of its divisors is an integer number (22562224).

Almost surely, 2^45124447 is an apocalyptic number.

45124447 is a deficient number, since it is larger than the sum of its proper divisors (1).

45124447 is an equidigital number, since it uses as much as digits as its factorization.

45124447 is an evil number, because the sum of its binary digits is even.

The product of its digits is 17920, while the sum is 31.

The square root of 45124447 is about 6717.4732600882. The cubic root of 45124447 is about 356.0169136222.

The spelling of 45124447 in words is "forty-five million, one hundred twenty-four thousand, four hundred forty-seven".