12519990 has 144 divisors (see below), whose sum is σ = 40334112. Its totient is φ = 2677248.

The previous prime is 12519989. The next prime is 12520003. The reversal of 12519990 is 9991521.

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 71 ways as a sum of consecutive naturals, for example, 74887 + ... + 75053.

It is an arithmetic number, because the mean of its divisors is an integer number (280098).

Almost surely, 2^12519990 is an apocalyptic number.

12519990 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 12519990, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20167056).

12519990 is an abundant number, since it is smaller than the sum of its proper divisors (27814122).

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

12519990 is a wasteful number, since it uses less digits than its factorization.

12519990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 211 (or 201 counting only the distinct ones).

The product of its (nonzero) digits is 7290, while the sum is 36.

The square root of 12519990 is about 3538.3597895070. The cubic root of 12519990 is about 232.2030896058.

The spelling of 12519990 in words is "twelve million, five hundred nineteen thousand, nine hundred ninety".