45131407 has 4 divisors (see below), whose sum is σ = 45569680. Its totient is φ = 44693136.

The previous prime is 45131393. The next prime is 45131417. The reversal of 45131407 is 70413154.

45131407 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 45131407 - 2¹⁹ = 44607119 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45131417) 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, 218982 + ... + 219187.

It is an arithmetic number, because the mean of its divisors is an integer number (11392420).

Almost surely, 2^45131407 is an apocalyptic number.

45131407 is a deficient number, since it is larger than the sum of its proper divisors (438273).

45131407 is a wasteful number, since it uses less digits than its factorization.

45131407 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 438272.

The product of its (nonzero) digits is 1680, while the sum is 25.

The square root of 45131407 is about 6717.9912920456. The cubic root of 45131407 is about 356.0352167114.

The spelling of 45131407 in words is "forty-five million, one hundred thirty-one thousand, four hundred seven".