45208861 has 2 divisors, whose sum is σ = 45208862. Its totient is φ = 45208860.

The previous prime is 45208837. The next prime is 45208873. The reversal of 45208861 is 16880254.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 32205625 + 13003236 = 5675^2 + 3606^2 .

It is a cyclic number.

It is not a de Polignac number, because 45208861 - 2⁵ = 45208829 is a prime.

It is a super-2 number, since 2×45208861² = 4087682225834642, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (45203861) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22604430 + 22604431.

It is an arithmetic number, because the mean of its divisors is an integer number (22604431).

Almost surely, 2^45208861 is an apocalyptic number.

It is an amenable number.

45208861 is a deficient number, since it is larger than the sum of its proper divisors (1).

45208861 is an equidigital number, since it uses as much as digits as its factorization.

45208861 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15360, while the sum is 34.

The square root of 45208861 is about 6723.7534904248. The cubic root of 45208861 is about 356.2387748182.

The spelling of 45208861 in words is "forty-five million, two hundred eight thousand, eight hundred sixty-one".