45208997 has 2 divisors, whose sum is σ = 45208998. Its totient is φ = 45208996.

The previous prime is 45208993. The next prime is 45209009. The reversal of 45208997 is 79980254.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 34975396 + 10233601 = 5914^2 + 3199^2 .

It is a cyclic number.

It is not a de Polignac number, because 45208997 - 2² = 45208993 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (45208993) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22604498 + 22604499.

It is an arithmetic number, because the mean of its divisors is an integer number (22604499).

Almost surely, 2^45208997 is an apocalyptic number.

It is an amenable number.

45208997 is a deficient number, since it is larger than the sum of its proper divisors (1).

45208997 is an equidigital number, since it uses as much as digits as its factorization.

45208997 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 181440, while the sum is 44.

The square root of 45208997 is about 6723.7636038159. The cubic root of 45208997 is about 356.2391320374.

The spelling of 45208997 in words is "forty-five million, two hundred eight thousand, nine hundred ninety-seven".