45038537 has 4 divisors (see below), whose sum is σ = 46591620. Its totient is φ = 43485456.

The previous prime is 45038533. The next prime is 45038551. The reversal of 45038537 is 73583054.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 32478601 + 12559936 = 5699^2 + 3544^2 .

It is a cyclic number.

It is not a de Polignac number, because 45038537 - 2² = 45038533 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 45038497 and 45038506.

It is not an unprimeable number, because it can be changed into a prime (45038533) 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, 776498 + ... + 776555.

It is an arithmetic number, because the mean of its divisors is an integer number (11647905).

Almost surely, 2^45038537 is an apocalyptic number.

It is an amenable number.

45038537 is a deficient number, since it is larger than the sum of its proper divisors (1553083).

45038537 is a wasteful number, since it uses less digits than its factorization.

45038537 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1553082.

The product of its (nonzero) digits is 50400, while the sum is 35.

The square root of 45038537 is about 6711.0756961906. The cubic root of 45038537 is about 355.7908362915.

The spelling of 45038537 in words is "forty-five million, thirty-eight thousand, five hundred thirty-seven".