45212100 has 36 divisors (see below), whose sum is σ = 130814544. Its totient is φ = 12056480.

The previous prime is 45212093. The next prime is 45212117. The reversal of 45212100 is 121254.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 45212100.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 75054 + ... + 75653.

Almost surely, 2^45212100 is an apocalyptic number.

It is an amenable number.

45212100 is an abundant number, since it is smaller than the sum of its proper divisors (85602444).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

45212100 is a wasteful number, since it uses less digits than its factorization.

45212100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 150724 (or 150717 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 15.

The square root of 45212100 is about 6723.9943485996. The cubic root of 45212100 is about 356.2472822200.

Adding to 45212100 its reverse (121254), we get a palindrome (45333354).

The spelling of 45212100 in words is "forty-five million, two hundred twelve thousand, one hundred".