11898225 has 24 divisors (see below), whose sum is σ = 21858720. Its totient is φ = 6345360.

The previous prime is 11898223. The next prime is 11898239. The reversal of 11898225 is 52289811.

It is not a de Polignac number, because 11898225 - 2¹ = 11898223 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11898225.

It is not an unprimeable number, because it can be changed into a prime (11898221) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 8139 + ... + 9488.

It is an arithmetic number, because the mean of its divisors is an integer number (910780).

Almost surely, 2^11898225 is an apocalyptic number.

11898225 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

11898225 is a deficient number, since it is larger than the sum of its proper divisors (9960495).

11898225 is a wasteful number, since it uses less digits than its factorization.

11898225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17646 (or 17635 counting only the distinct ones).

The product of its digits is 11520, while the sum is 36.

The square root of 11898225 is about 3449.3803791406. The cubic root of 11898225 is about 228.2937695258.

The spelling of 11898225 in words is "eleven million, eight hundred ninety-eight thousand, two hundred twenty-five".