45105012521 has 8 divisors (see below), whose sum is σ = 45275967360. Its totient is φ = 44934340528.

The previous prime is 45105012481. The next prime is 45105012553. The reversal of 45105012521 is 12521050154.

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

It is a cyclic number.

It is not a de Polignac number, because 45105012521 - 2⁶ = 45105012457 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (45105312521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 251600 + ... + 391806.

It is an arithmetic number, because the mean of its divisors is an integer number (5659495920).

Almost surely, 2^45105012521 is an apocalyptic number.

It is an amenable number.

45105012521 is a deficient number, since it is larger than the sum of its proper divisors (170954839).

45105012521 is a wasteful number, since it uses less digits than its factorization.

45105012521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141423.

The product of its (nonzero) digits is 2000, while the sum is 26.

Adding to 45105012521 its reverse (12521050154), we get a palindrome (57626062675).

The spelling of 45105012521 in words is "forty-five billion, one hundred five million, twelve thousand, five hundred twenty-one".