45709291 has 4 divisors (see below), whose sum is σ = 46113912. Its totient is φ = 45304672.

The previous prime is 45709289. The next prime is 45709297. The reversal of 45709291 is 19290754.

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

It is a cyclic number.

It is not a de Polignac number, because 45709291 - 2¹ = 45709289 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 45709291.

It is not an unprimeable number, because it can be changed into a prime (45709297) 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, 202141 + ... + 202366.

It is an arithmetic number, because the mean of its divisors is an integer number (11528478).

Almost surely, 2^45709291 is an apocalyptic number.

45709291 is a deficient number, since it is larger than the sum of its proper divisors (404621).

45709291 is a wasteful number, since it uses less digits than its factorization.

45709291 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 404620.

The product of its (nonzero) digits is 22680, while the sum is 37.

The square root of 45709291 is about 6760.8646636359. The cubic root of 45709291 is about 357.5483912521.

It can be divided in two parts, 4570 and 9291, that added together give a triangular number (13861 = T₁₆₆).

The spelling of 45709291 in words is "forty-five million, seven hundred nine thousand, two hundred ninety-one".