45390537 has 20 divisors (see below), whose sum is σ = 68002000. Its totient is φ = 30172824.

The previous prime is 45390533. The next prime is 45390547. The reversal of 45390537 is 73509354.

45390537 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 45390537 - 2² = 45390533 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (45390533) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 39858 + ... + 40980.

It is an arithmetic number, because the mean of its divisors is an integer number (3400100).

Almost surely, 2^45390537 is an apocalyptic number.

45390537 is the 3369-th decagonal number.

It is an amenable number.

45390537 is a deficient number, since it is larger than the sum of its proper divisors (22611463).

45390537 is a wasteful number, since it uses less digits than its factorization.

45390537 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1634 (or 1625 counting only the distinct ones).

The product of its (nonzero) digits is 56700, while the sum is 36.

The square root of 45390537 is about 6737.2499582545. The cubic root of 45390537 is about 356.7153298767.

The spelling of 45390537 in words is "forty-five million, three hundred ninety thousand, five hundred thirty-seven".