45340251 has 16 divisors (see below), whose sum is σ = 69421440. Its totient is φ = 26032320.

The previous prime is 45340247. The next prime is 45340277. The reversal of 45340251 is 15204354.

It is not a de Polignac number, because 45340251 - 2² = 45340247 is a prime.

It is not an unprimeable number, because it can be changed into a prime (45340231) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 35530 + ... + 36783.

It is an arithmetic number, because the mean of its divisors is an integer number (4338840).

Almost surely, 2^45340251 is an apocalyptic number.

45340251 is a deficient number, since it is larger than the sum of its proper divisors (24081189).

45340251 is a wasteful number, since it uses less digits than its factorization.

45340251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72346.

The product of its (nonzero) digits is 2400, while the sum is 24.

The square root of 45340251 is about 6733.5169859443. The cubic root of 45340251 is about 356.5835519300.

It can be divided in two parts, 453 and 40251, that added together give a palindrome (40704).

The spelling of 45340251 in words is "forty-five million, three hundred forty thousand, two hundred fifty-one".