45713281 has 4 divisors (see below), whose sum is σ = 46685952. Its totient is φ = 44740612.

The previous prime is 45713267. The next prime is 45713321. The reversal of 45713281 is 18231754.

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.

It is a cyclic number.

It is not a de Polignac number, because 45713281 - 2¹¹ = 45711233 is a prime.

It is a super-2 number, since 2×45713281² = 4179408119569922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (45713231) 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, 486265 + ... + 486358.

It is an arithmetic number, because the mean of its divisors is an integer number (11671488).

Almost surely, 2^45713281 is an apocalyptic number.

It is an amenable number.

45713281 is a deficient number, since it is larger than the sum of its proper divisors (972671).

45713281 is an equidigital number, since it uses as much as digits as its factorization.

45713281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 972670.

The product of its digits is 6720, while the sum is 31.

The square root of 45713281 is about 6761.1597377965. The cubic root of 45713281 is about 357.5587945096.

The spelling of 45713281 in words is "forty-five million, seven hundred thirteen thousand, two hundred eighty-one".