45104491 has 2 divisors, whose sum is σ = 45104492. Its totient is φ = 45104490.

The previous prime is 45104489. The next prime is 45104509. The reversal of 45104491 is 19440154.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 45104491 - 2¹ = 45104489 is a prime.

Together with 45104489, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (45104471) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22552245 + 22552246.

It is an arithmetic number, because the mean of its divisors is an integer number (22552246).

Almost surely, 2^45104491 is an apocalyptic number.

45104491 is a deficient number, since it is larger than the sum of its proper divisors (1).

45104491 is an equidigital number, since it uses as much as digits as its factorization.

45104491 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2880, while the sum is 28.

The square root of 45104491 is about 6715.9877158911. The cubic root of 45104491 is about 355.9644238110.

The spelling of 45104491 in words is "forty-five million, one hundred four thousand, four hundred ninety-one".