45215000 has 40 divisors (see below), whose sum is σ = 105950460. Its totient is φ = 18084000.

The previous prime is 45214993. The next prime is 45215099. The reversal of 45215000 is 51254.

45215000 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (40).

It is a self number, because there is not a number n which added to its sum of digits gives 45215000.

It is a congruent number.

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 9 ways as a sum of consecutive naturals, for example, 479 + ... + 9521.

Almost surely, 2^45215000 is an apocalyptic number.

45215000 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 45215000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (52975230).

45215000 is an abundant number, since it is smaller than the sum of its proper divisors (60735460).

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

45215000 is an equidigital number, since it uses as much as digits as its factorization.

45215000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9069 (or 9050 counting only the distinct ones).

The product of its (nonzero) digits is 200, while the sum is 17.

The square root of 45215000 is about 6724.2099907722. The cubic root of 45215000 is about 356.2548988759.

Adding to 45215000 its reverse (51254), we get a palindrome (45266254).

The spelling of 45215000 in words is "forty-five million, two hundred fifteen thousand".