45145454121 has 12 divisors (see below), whose sum is σ = 65218099648. Its totient is φ = 30093277464.

The previous prime is 45145454093. The next prime is 45145454131. The reversal of 45145454121 is 12145454154.

45145454121 is a `hidden beast` number, since 4 + 51 + 4 + 545 + 41 + 21 = 666.

It is not a de Polignac number, because 45145454121 - 2⁹ = 45145453609 is a prime.

It is a super-3 number, since 3×45145454121³ (a number of 33 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (45145454131) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 229165 + ... + 377898.

Almost surely, 2^45145454121 is an apocalyptic number.

It is an amenable number.

45145454121 is a deficient number, since it is larger than the sum of its proper divisors (20072645527).

45145454121 is a wasteful number, since it uses less digits than its factorization.

45145454121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 615332 (or 615329 counting only the distinct ones).

The product of its digits is 64000, while the sum is 36.

The spelling of 45145454121 in words is "forty-five billion, one hundred forty-five million, four hundred fifty-four thousand, one hundred twenty-one".