45431797 has 2 divisors, whose sum is σ = 45431798. Its totient is φ = 45431796.

The previous prime is 45431791. The next prime is 45431821. The reversal of 45431797 is 79713454.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 45239076 + 192721 = 6726^2 + 439^2 .

It is a cyclic number.

It is not a de Polignac number, because 45431797 - 2¹¹ = 45429749 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (45431791) 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, 22715898 + 22715899.

It is an arithmetic number, because the mean of its divisors is an integer number (22715899).

Almost surely, 2^45431797 is an apocalyptic number.

It is an amenable number.

45431797 is a deficient number, since it is larger than the sum of its proper divisors (1).

45431797 is an equidigital number, since it uses as much as digits as its factorization.

45431797 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 105840, while the sum is 40.

The square root of 45431797 is about 6740.3113429574. The cubic root of 45431797 is about 356.8233818934.

The spelling of 45431797 in words is "forty-five million, four hundred thirty-one thousand, seven hundred ninety-seven".