45013031 has 4 divisors (see below), whose sum is σ = 51443472. Its totient is φ = 38582592.

The previous prime is 45012997. The next prime is 45013063. The reversal of 45013031 is 13031054.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13031054 = 2 ⋅6515527.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-45013031 is a prime.

It is a super-2 number, since 2×45013031² = 4052345919613922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45013091) 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, 3215210 + ... + 3215223.

It is an arithmetic number, because the mean of its divisors is an integer number (12860868).

Almost surely, 2^45013031 is an apocalyptic number.

45013031 is a deficient number, since it is larger than the sum of its proper divisors (6430441).

45013031 is an equidigital number, since it uses as much as digits as its factorization.

45013031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6430440.

The product of its (nonzero) digits is 180, while the sum is 17.

The square root of 45013031 is about 6709.1751355886. The cubic root of 45013031 is about 355.7236603775.

Adding to 45013031 its reverse (13031054), we get a palindrome (58044085).

The spelling of 45013031 in words is "forty-five million, thirteen thousand, thirty-one".