45021497 has 2 divisors, whose sum is σ = 45021498. Its totient is φ = 45021496.

The previous prime is 45021467. The next prime is 45021523. The reversal of 45021497 is 79412054.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 45010681 + 10816 = 6709^2 + 104^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-45021497 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (45021407) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22510748 + 22510749.

It is an arithmetic number, because the mean of its divisors is an integer number (22510749).

Almost surely, 2^45021497 is an apocalyptic number.

It is an amenable number.

45021497 is a deficient number, since it is larger than the sum of its proper divisors (1).

45021497 is an equidigital number, since it uses as much as digits as its factorization.

45021497 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10080, while the sum is 32.

The square root of 45021497 is about 6709.8060329640. The cubic root of 45021497 is about 355.7459603475.

The spelling of 45021497 in words is "forty-five million, twenty-one thousand, four hundred ninety-seven".