45031613 has 8 divisors (see below), whose sum is σ = 49306080. Its totient is φ = 40787280.

The previous prime is 45031607. The next prime is 45031619. The reversal of 45031613 is 31613054.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (45031607) and next prime (45031619).

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 45031613 - 2⁶ = 45031549 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45031619) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4343 + ... + 10436.

It is an arithmetic number, because the mean of its divisors is an integer number (6163260).

Almost surely, 2^45031613 is an apocalyptic number.

It is an amenable number.

45031613 is a deficient number, since it is larger than the sum of its proper divisors (4274467).

45031613 is a wasteful number, since it uses less digits than its factorization.

45031613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15067.

The product of its (nonzero) digits is 1080, while the sum is 23.

The square root of 45031613 is about 6710.5598127131. The cubic root of 45031613 is about 355.7726028544.

Adding to 45031613 its reverse (31613054), we get a palindrome (76644667).

It can be divided in two parts, 4503 and 1613, that added together give a palindrome (6116).

The spelling of 45031613 in words is "forty-five million, thirty-one thousand, six hundred thirteen".