45369491 has 2 divisors, whose sum is σ = 45369492. Its totient is φ = 45369490.

The previous prime is 45369487. The next prime is 45369539. The reversal of 45369491 is 19496354.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 45369491 - 2² = 45369487 is a prime.

It is not a weakly prime, because it can be changed into another prime (45369451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22684745 + 22684746.

It is an arithmetic number, because the mean of its divisors is an integer number (22684746).

Almost surely, 2^45369491 is an apocalyptic number.

45369491 is a deficient number, since it is larger than the sum of its proper divisors (1).

45369491 is an equidigital number, since it uses as much as digits as its factorization.

45369491 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 116640, while the sum is 41.

The square root of 45369491 is about 6735.6878639082. The cubic root of 45369491 is about 356.6601892245.

The spelling of 45369491 in words is "forty-five million, three hundred sixty-nine thousand, four hundred ninety-one".