45144031 has 4 divisors (see below), whose sum is σ = 45235000. Its totient is φ = 45053064.

The previous prime is 45144007. The next prime is 45144059. The reversal of 45144031 is 13044154.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-45144031 is a prime.

It is a super-2 number, since 2×45144031² = 4075967069857922, 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 = 45143993 and 45144011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45144431) 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 3 ways as a sum of consecutive naturals, for example, 44736 + ... + 45733.

It is an arithmetic number, because the mean of its divisors is an integer number (11308750).

Almost surely, 2^45144031 is an apocalyptic number.

45144031 is a deficient number, since it is larger than the sum of its proper divisors (90969).

45144031 is an equidigital number, since it uses as much as digits as its factorization.

45144031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90968.

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 45144031 is about 6718.9307929164. The cubic root of 45144031 is about 356.0684099270.

Adding to 45144031 its reverse (13044154), we get a palindrome (58188185).

The spelling of 45144031 in words is "forty-five million, one hundred forty-four thousand, thirty-one".