45917149 has 4 divisors (see below), whose sum is σ = 45930780. Its totient is φ = 45903520.

The previous prime is 45917117. The next prime is 45917173. The reversal of 45917149 is 94171954.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 7601049 + 38316100 = 2757^2 + 6190^2 .

It is a cyclic number.

It is not a de Polignac number, because 45917149 - 2⁵ = 45917117 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45917549) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2319 + ... + 9859.

It is an arithmetic number, because the mean of its divisors is an integer number (11482695).

Almost surely, 2^45917149 is an apocalyptic number.

It is an amenable number.

45917149 is a deficient number, since it is larger than the sum of its proper divisors (13631).

45917149 is an equidigital number, since it uses as much as digits as its factorization.

45917149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13630.

The product of its digits is 45360, while the sum is 40.

The square root of 45917149 is about 6776.2193736626. The cubic root of 45917149 is about 358.0895425343.

The spelling of 45917149 in words is "forty-five million, nine hundred seventeen thousand, one hundred forty-nine".