45215493 has 16 divisors (see below), whose sum is σ = 63070080. Its totient is φ = 28759104.

The previous prime is 45215491. The next prime is 45215503. The reversal of 45215493 is 39451254.

It is not a de Polignac number, because 45215493 - 2¹ = 45215491 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45215491) 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, 41763 + ... + 42831.

It is an arithmetic number, because the mean of its divisors is an integer number (3941880).

Almost surely, 2^45215493 is an apocalyptic number.

It is an amenable number.

45215493 is a deficient number, since it is larger than the sum of its proper divisors (17854587).

45215493 is a wasteful number, since it uses less digits than its factorization.

45215493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1708.

The product of its digits is 21600, while the sum is 33.

The square root of 45215493 is about 6724.2466492537. The cubic root of 45215493 is about 356.2561936750.

The spelling of 45215493 in words is "forty-five million, two hundred fifteen thousand, four hundred ninety-three".