45237539 has 4 divisors (see below), whose sum is σ = 45979200. Its totient is φ = 44495880.

The previous prime is 45237523. The next prime is 45237551. The reversal of 45237539 is 93573254.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 93573254 = 2 ⋅46786627.

It is a cyclic number.

It is not a de Polignac number, because 45237539 - 2⁴ = 45237523 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (45237839) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 370739 + ... + 370860.

It is an arithmetic number, because the mean of its divisors is an integer number (11494800).

Almost surely, 2^45237539 is an apocalyptic number.

45237539 is a deficient number, since it is larger than the sum of its proper divisors (741661).

45237539 is an equidigital number, since it uses as much as digits as its factorization.

45237539 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 741660.

The product of its digits is 113400, while the sum is 38.

The square root of 45237539 is about 6725.8857409266. The cubic root of 45237539 is about 356.3140849522.

The spelling of 45237539 in words is "forty-five million, two hundred thirty-seven thousand, five hundred thirty-nine".