45051631 has 8 divisors (see below), whose sum is σ = 45606384. Its totient is φ = 44499840.

The previous prime is 45051623. The next prime is 45051647. The reversal of 45051631 is 13615054.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 45051631 - 2³ = 45051623 is a prime.

It is a super-2 number, since 2×45051631² = 4059298911520322, 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 = 45051596 and 45051605.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45451631) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 47100 + ... + 48046.

It is an arithmetic number, because the mean of its divisors is an integer number (5700798).

Almost surely, 2^45051631 is an apocalyptic number.

45051631 is a deficient number, since it is larger than the sum of its proper divisors (554753).

45051631 is a wasteful number, since it uses less digits than its factorization.

45051631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1481.

The product of its (nonzero) digits is 1800, while the sum is 25.

The square root of 45051631 is about 6712.0511768013. The cubic root of 45051631 is about 355.8253124988.

Adding to 45051631 its reverse (13615054), we get a palindrome (58666685).

The spelling of 45051631 in words is "forty-five million, fifty-one thousand, six hundred thirty-one".