12905190 has 32 divisors (see below), whose sum is σ = 34414560. Its totient is φ = 3441312.

The previous prime is 12905183. The next prime is 12905209. The reversal of 12905190 is 9150921.

It is a happy number.

It is a super-2 number, since 2×12905190² = 333087857872200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

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 15 ways as a sum of consecutive naturals, for example, 23629 + ... + 24168.

It is an arithmetic number, because the mean of its divisors is an integer number (1075455).

Almost surely, 2^12905190 is an apocalyptic number.

12905190 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12905190 is an abundant number, since it is smaller than the sum of its proper divisors (21509370).

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

12905190 is a wasteful number, since it uses less digits than its factorization.

12905190 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47813 (or 47807 counting only the distinct ones).

The product of its (nonzero) digits is 810, while the sum is 27.

The square root of 12905190 is about 3592.3794343026. The cubic root of 12905190 is about 234.5604580107.

The spelling of 12905190 in words is "twelve million, nine hundred five thousand, one hundred ninety".