45005431131 has 12 divisors (see below), whose sum is σ = 67104872640. Its totient is φ = 29035761840.

The previous prime is 45005431091. The next prime is 45005431199. The reversal of 45005431131 is 13113450054.

It is a happy number.

45005431131 is a `hidden beast` number, since 4 + 5 + 0 + 0 + 543 + 113 + 1 = 666.

It is not a de Polignac number, because 45005431131 - 2²⁹ = 44468560219 is a prime.

It is a super-2 number, since 2×45005431131² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 45005431095 and 45005431104.

It is not an unprimeable number, because it can be changed into a prime (45005436131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 80654616 + ... + 80655173.

It is an arithmetic number, because the mean of its divisors is an integer number (5592072720).

Almost surely, 2^45005431131 is an apocalyptic number.

45005431131 is a deficient number, since it is larger than the sum of its proper divisors (22099441509).

45005431131 is a wasteful number, since it uses less digits than its factorization.

45005431131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 161309826 (or 161309823 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 27.

Adding to 45005431131 its reverse (13113450054), we get a palindrome (58118881185).

The spelling of 45005431131 in words is "forty-five billion, five million, four hundred thirty-one thousand, one hundred thirty-one".