45457261 has 4 divisors (see below), whose sum is σ = 46202524. Its totient is φ = 44712000.

The previous prime is 45457249. The next prime is 45457273. The reversal of 45457261 is 16275454.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (45457249) and next prime (45457273).

It can be written as a sum of positive squares in 2 ways, for example, as 16362025 + 29095236 = 4045^2 + 5394^2 .

It is a cyclic number.

It is not a de Polignac number, because 45457261 - 2¹¹ = 45455213 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 (45457211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 372540 + ... + 372661.

It is an arithmetic number, because the mean of its divisors is an integer number (11550631).

Almost surely, 2^45457261 is an apocalyptic number.

It is an amenable number.

45457261 is a deficient number, since it is larger than the sum of its proper divisors (745263).

45457261 is an equidigital number, since it uses as much as digits as its factorization.

45457261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 745262.

The product of its digits is 33600, while the sum is 34.

The square root of 45457261 is about 6742.2000118656. The cubic root of 45457261 is about 356.8900345769.

The spelling of 45457261 in words is "forty-five million, four hundred fifty-seven thousand, two hundred sixty-one".