45513791 has 2 divisors, whose sum is σ = 45513792. Its totient is φ = 45513790.

The previous prime is 45513781. The next prime is 45513863. The reversal of 45513791 is 19731554.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 45513791 - 2¹⁰ = 45512767 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (45513701) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22756895 + 22756896.

It is an arithmetic number, because the mean of its divisors is an integer number (22756896).

Almost surely, 2^45513791 is an apocalyptic number.

45513791 is a deficient number, since it is larger than the sum of its proper divisors (1).

45513791 is an equidigital number, since it uses as much as digits as its factorization.

45513791 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 18900, while the sum is 35.

The square root of 45513791 is about 6746.3909610991. The cubic root of 45513791 is about 357.0379144086.

The spelling of 45513791 in words is "forty-five million, five hundred thirteen thousand, seven hundred ninety-one".