45281413 has 4 divisors (see below), whose sum is σ = 45295200. Its totient is φ = 45267628.

The previous prime is 45281407. The next prime is 45281417. The reversal of 45281413 is 31418254.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 45281413 - 2⁵ = 45281381 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45281417) 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, 1206 + ... + 9592.

It is an arithmetic number, because the mean of its divisors is an integer number (11323800).

Almost surely, 2^45281413 is an apocalyptic number.

It is an amenable number.

45281413 is a deficient number, since it is larger than the sum of its proper divisors (13787).

45281413 is an equidigital number, since it uses as much as digits as its factorization.

45281413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13786.

The product of its digits is 3840, while the sum is 28.

The square root of 45281413 is about 6729.1465283496. The cubic root of 45281413 is about 356.4292391164.

Adding to 45281413 its reverse (31418254), we get a palindrome (76699667).

The spelling of 45281413 in words is "forty-five million, two hundred eighty-one thousand, four hundred thirteen".