45519131 has 4 divisors (see below), whose sum is σ = 52021872. Its totient is φ = 39016392.

The previous prime is 45519119. The next prime is 45519151. The reversal of 45519131 is 13191554.

45519131 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 not a de Polignac number, because 45519131 - 2¹⁸ = 45256987 is a prime.

It is a super-2 number, since 2×45519131² = 4143982573990322, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 45519094 and 45519103.

It is not an unprimeable number, because it can be changed into a prime (45519151) 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, 3251360 + ... + 3251373.

It is an arithmetic number, because the mean of its divisors is an integer number (13005468).

Almost surely, 2^45519131 is an apocalyptic number.

45519131 is a deficient number, since it is larger than the sum of its proper divisors (6502741).

45519131 is an equidigital number, since it uses as much as digits as its factorization.

45519131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6502740.

The product of its digits is 2700, while the sum is 29.

The square root of 45519131 is about 6746.7867166526. The cubic root of 45519131 is about 357.0518772673.

The spelling of 45519131 in words is "forty-five million, five hundred nineteen thousand, one hundred thirty-one".