45261637 has 4 divisors (see below), whose sum is σ = 45370080. Its totient is φ = 45153196.

The previous prime is 45261613. The next prime is 45261653. The reversal of 45261637 is 73616254.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 45261637 - 2¹⁹ = 44737349 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 (45261037) 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, 53593 + ... + 54430.

It is an arithmetic number, because the mean of its divisors is an integer number (11342520).

Almost surely, 2^45261637 is an apocalyptic number.

It is an amenable number.

45261637 is a deficient number, since it is larger than the sum of its proper divisors (108443).

45261637 is a wasteful number, since it uses less digits than its factorization.

45261637 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108442.

The product of its digits is 30240, while the sum is 34.

The square root of 45261637 is about 6727.6769393305. The cubic root of 45261637 is about 356.3773431281.

The spelling of 45261637 in words is "forty-five million, two hundred sixty-one thousand, six hundred thirty-seven".