45215745 has 8 divisors (see below), whose sum is σ = 72345216. Its totient is φ = 24115056.

The previous prime is 45215741. The next prime is 45215761. The reversal of 45215745 is 54751254.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 45215745 - 2² = 45215741 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (45215741) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1507177 + ... + 1507206.

It is an arithmetic number, because the mean of its divisors is an integer number (9043152).

Almost surely, 2^45215745 is an apocalyptic number.

It is an amenable number.

45215745 is a deficient number, since it is larger than the sum of its proper divisors (27129471).

45215745 is a wasteful number, since it uses less digits than its factorization.

45215745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3014391.

The product of its digits is 28000, while the sum is 33.

The square root of 45215745 is about 6724.2653873862. The cubic root of 45215745 is about 356.2568555160.

Adding to 45215745 its reverse (54751254), we get a palindrome (99966999).

The spelling of 45215745 in words is "forty-five million, two hundred fifteen thousand, seven hundred forty-five".