45289917 has 12 divisors (see below), whose sum is σ = 65579644. Its totient is φ = 30119040.

The previous prime is 45289913. The next prime is 45289957. The reversal of 45289917 is 71998254.

It can be written as a sum of positive squares in 2 ways, for example, as 17189316 + 28100601 = 4146^2 + 5301^2 .

It is not a de Polignac number, because 45289917 - 2² = 45289913 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45289913) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2188 + ... + 9765.

Almost surely, 2^45289917 is an apocalyptic number.

It is an amenable number.

45289917 is a deficient number, since it is larger than the sum of its proper divisors (20289727).

45289917 is a wasteful number, since it uses less digits than its factorization.

45289917 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12380 (or 12377 counting only the distinct ones).

The product of its digits is 181440, while the sum is 45.

The square root of 45289917 is about 6729.7783767372. The cubic root of 45289917 is about 356.4515505853.

The spelling of 45289917 in words is "forty-five million, two hundred eighty-nine thousand, nine hundred seventeen".