12511290 has 64 divisors (see below), whose sum is σ = 33841152. Its totient is φ = 2932800.

The previous prime is 12511277. The next prime is 12511349. The reversal of 12511290 is 9211521.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9619 + ... + 10841.

It is an arithmetic number, because the mean of its divisors is an integer number (528768).

Almost surely, 2^12511290 is an apocalyptic number.

12511290 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 12511290, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16920576).

12511290 is an abundant number, since it is smaller than the sum of its proper divisors (21329862).

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

12511290 is a wasteful number, since it uses less digits than its factorization.

12511290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1275.

The product of its (nonzero) digits is 180, while the sum is 21.

The square root of 12511290 is about 3537.1301926845. The cubic root of 12511290 is about 232.1492920392.

The spelling of 12511290 in words is "twelve million, five hundred eleven thousand, two hundred ninety".