45345131 has 16 divisors (see below), whose sum is σ = 50265600. Its totient is φ = 40648608.

The previous prime is 45345127. The next prime is 45345151. The reversal of 45345131 is 13154354.

It is not a de Polignac number, because 45345131 - 2² = 45345127 is a prime.

It is a super-2 number, since 2×45345131² = 4112361810814322, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 45345131.

It is not an unprimeable number, because it can be changed into a prime (45345101) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 68480 + ... + 69138.

It is an arithmetic number, because the mean of its divisors is an integer number (3141600).

Almost surely, 2^45345131 is an apocalyptic number.

45345131 is a deficient number, since it is larger than the sum of its proper divisors (4920469).

45345131 is a wasteful number, since it uses less digits than its factorization.

45345131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 818.

The product of its digits is 3600, while the sum is 26.

The square root of 45345131 is about 6733.8793425484. The cubic root of 45345131 is about 356.5963445757.

Adding to 45345131 its reverse (13154354), we get a palindrome (58499485).

The spelling of 45345131 in words is "forty-five million, three hundred forty-five thousand, one hundred thirty-one".