45831637 has 4 divisors (see below), whose sum is σ = 45850860. Its totient is φ = 45812416.

The previous prime is 45831623. The next prime is 45831649. The reversal of 45831637 is 73613854.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 73613854 = 2 ⋅36806927.

It can be written as a sum of positive squares in 2 ways, for example, as 39450961 + 6380676 = 6281^2 + 2526^2 .

It is a cyclic number.

It is not a de Polignac number, because 45831637 - 2⁷ = 45831509 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 45831596 and 45831605.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45831607) 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, 5428 + ... + 11005.

It is an arithmetic number, because the mean of its divisors is an integer number (11462715).

Almost surely, 2^45831637 is an apocalyptic number.

It is an amenable number.

45831637 is a deficient number, since it is larger than the sum of its proper divisors (19223).

45831637 is a wasteful number, since it uses less digits than its factorization.

45831637 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19222.

The product of its digits is 60480, while the sum is 37.

The square root of 45831637 is about 6769.9067201846. The cubic root of 45831637 is about 357.8671130652.

The spelling of 45831637 in words is "forty-five million, eight hundred thirty-one thousand, six hundred thirty-seven".