45504131 has 4 divisors (see below), whose sum is σ = 46472352. Its totient is φ = 44535912.

The previous prime is 45504089. The next prime is 45504133. The reversal of 45504131 is 13140554.

45504131 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-45504131 is a prime.

It is a super-2 number, since 2×45504131² = 4141251876130322, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 45504097 and 45504106.

It is not an unprimeable number, because it can be changed into a prime (45504133) 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 3 ways as a sum of consecutive naturals, for example, 484040 + ... + 484133.

It is an arithmetic number, because the mean of its divisors is an integer number (11618088).

Almost surely, 2^45504131 is an apocalyptic number.

45504131 is a deficient number, since it is larger than the sum of its proper divisors (968221).

45504131 is an equidigital number, since it uses as much as digits as its factorization.

45504131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 968220.

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 45504131 is about 6745.6749847588. The cubic root of 45504131 is about 357.0126529789.

Adding to 45504131 its reverse (13140554), we get a palindrome (58644685).

The spelling of 45504131 in words is "forty-five million, five hundred four thousand, one hundred thirty-one".