11997125 has 16 divisors (see below), whose sum is σ = 17112576. Its totient is φ = 8226000.

The previous prime is 11997109. The next prime is 11997137. The reversal of 11997125 is 52179911.

It is not a de Polignac number, because 11997125 - 2⁴ = 11997109 is a prime.

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5981 + ... + 7730.

It is an arithmetic number, because the mean of its divisors is an integer number (1069536).

Almost surely, 2^11997125 is an apocalyptic number.

It is an amenable number.

11997125 is a deficient number, since it is larger than the sum of its proper divisors (5115451).

11997125 is an equidigital number, since it uses as much as digits as its factorization.

11997125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13733 (or 13723 counting only the distinct ones).

The product of its digits is 5670, while the sum is 35.

The square root of 11997125 is about 3463.6866197738. The cubic root of 11997125 is about 228.9245634201.

The spelling of 11997125 in words is "eleven million, nine hundred ninety-seven thousand, one hundred twenty-five".