45002120 has 16 divisors (see below), whose sum is σ = 101254860. Its totient is φ = 18000832.

The previous prime is 45002107. The next prime is 45002131. The reversal of 45002120 is 2120054.

45002120 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 44970436 + 31684 = 6706^2 + 178^2 .

It is a junction number, because it is equal to n+sod(n) for n = 45002095 and 45002104.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 562487 + ... + 562566.

Almost surely, 2^45002120 is an apocalyptic number.

45002120 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

45002120 is an abundant number, since it is smaller than the sum of its proper divisors (56252740).

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

45002120 is a wasteful number, since it uses less digits than its factorization.

45002120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1125064 (or 1125060 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 14.

The square root of 45002120 is about 6708.3619461088. The cubic root of 45002120 is about 355.6949160011.

Adding to 45002120 its reverse (2120054), we get a palindrome (47122174).

The spelling of 45002120 in words is "forty-five million, two thousand, one hundred twenty".