45657261 has 24 divisors (see below), whose sum is σ = 71285760. Its totient is φ = 27992736.

The previous prime is 45657233. The next prime is 45657263. The reversal of 45657261 is 16275654.

It is a happy number.

It is not a de Polignac number, because 45657261 - 2⁵ = 45657229 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45657263) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 41460 + ... + 42546.

It is an arithmetic number, because the mean of its divisors is an integer number (2970240).

Almost surely, 2^45657261 is an apocalyptic number.

It is an amenable number.

45657261 is a deficient number, since it is larger than the sum of its proper divisors (25628499).

45657261 is a wasteful number, since it uses less digits than its factorization.

45657261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1465 (or 1462 counting only the distinct ones).

The product of its digits is 50400, while the sum is 36.

The square root of 45657261 is about 6757.0156874170. The cubic root of 45657261 is about 357.4126762773.

The spelling of 45657261 in words is "forty-five million, six hundred fifty-seven thousand, two hundred sixty-one".