45074891 has 2 divisors, whose sum is σ = 45074892. Its totient is φ = 45074890.

The previous prime is 45074863. The next prime is 45074921. The reversal of 45074891 is 19847054.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-45074891 is a prime.

It is not a weakly prime, because it can be changed into another prime (45074801) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22537445 + 22537446.

It is an arithmetic number, because the mean of its divisors is an integer number (22537446).

Almost surely, 2^45074891 is an apocalyptic number.

45074891 is a deficient number, since it is larger than the sum of its proper divisors (1).

45074891 is an equidigital number, since it uses as much as digits as its factorization.

45074891 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 40320, while the sum is 38.

The square root of 45074891 is about 6713.7836575213. The cubic root of 45074891 is about 355.8865390857.

The spelling of 45074891 in words is "forty-five million, seventy-four thousand, eight hundred ninety-one".