45710921 has 4 divisors (see below), whose sum is σ = 46337172. Its totient is φ = 45084672.

The previous prime is 45710911. The next prime is 45710923. The reversal of 45710921 is 12901754.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 12901754 = 2 ⋅6450877.

It can be written as a sum of positive squares in 2 ways, for example, as 13957696 + 31753225 = 3736^2 + 5635^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-45710921 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (45710923) 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, 313016 + ... + 313161.

It is an arithmetic number, because the mean of its divisors is an integer number (11584293).

Almost surely, 2^45710921 is an apocalyptic number.

It is an amenable number.

45710921 is a deficient number, since it is larger than the sum of its proper divisors (626251).

45710921 is an equidigital number, since it uses as much as digits as its factorization.

45710921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 626250.

The product of its (nonzero) digits is 2520, while the sum is 29.

The square root of 45710921 is about 6760.9852092724. The cubic root of 45710921 is about 357.5526412776.

The spelling of 45710921 in words is "forty-five million, seven hundred ten thousand, nine hundred twenty-one".