45015000 has 80 divisors (see below), whose sum is σ = 140673720. Its totient is φ = 12000000.

The previous prime is 45014999. The next prime is 45015001. The reversal of 45015000 is 51054.

It is an interprime number because it is at equal distance from previous prime (45014999) and next prime (45015001).

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45015001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 13500 + ... + 16500.

Almost surely, 2^45015000 is an apocalyptic number.

45015000 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 45015000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (70336860).

45015000 is an abundant number, since it is smaller than the sum of its proper divisors (95658720).

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

45015000 is a wasteful number, since it uses less digits than its factorization.

45015000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3030 (or 3011 counting only the distinct ones).

The product of its (nonzero) digits is 100, while the sum is 15.

The square root of 45015000 is about 6709.3218733341. The cubic root of 45015000 is about 355.7288470953.

Adding to 45015000 its reverse (51054), we get a palindrome (45066054).

The spelling of 45015000 in words is "forty-five million, fifteen thousand".