45361631 has 4 divisors (see below), whose sum is σ = 51841872. Its totient is φ = 38881392.

The previous prime is 45361583. The next prime is 45361669. The reversal of 45361631 is 13616354.

It is a happy number.

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 45361631 - 2¹⁴ = 45345247 is a prime.

It is a super-2 number, since 2×45361631² = 4115355133960322, 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 = 45361594 and 45361603.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45361691) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3240110 + ... + 3240123.

It is an arithmetic number, because the mean of its divisors is an integer number (12960468).

Almost surely, 2^45361631 is an apocalyptic number.

45361631 is a deficient number, since it is larger than the sum of its proper divisors (6480241).

45361631 is an equidigital number, since it uses as much as digits as its factorization.

45361631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6480240.

The product of its digits is 6480, while the sum is 29.

The square root of 45361631 is about 6735.1043792951. The cubic root of 45361631 is about 356.6395916016.

Adding to 45361631 its reverse (13616354), we get a palindrome (58977985).

It can be divided in two parts, 4 and 5361631, that added together give a palindrome (5361635).

The spelling of 45361631 in words is "forty-five million, three hundred sixty-one thousand, six hundred thirty-one".