11125915 has 4 divisors (see below), whose sum is σ = 13351104. Its totient is φ = 8900728.

The previous prime is 11125909. The next prime is 11125921. The reversal of 11125915 is 51952111.

It is a happy number.

11125915 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 51952111 = 131 ⋅396581.

It is an interprime number because it is at equal distance from previous prime (11125909) and next prime (11125921).

It is a cyclic number.

It is not a de Polignac number, because 11125915 - 2¹⁷ = 10994843 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11125915.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1112587 + ... + 1112596.

It is an arithmetic number, because the mean of its divisors is an integer number (3337776).

Almost surely, 2^11125915 is an apocalyptic number.

11125915 is a deficient number, since it is larger than the sum of its proper divisors (2225189).

11125915 is an equidigital number, since it uses as much as digits as its factorization.

11125915 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2225188.

The product of its digits is 450, while the sum is 25.

The square root of 11125915 is about 3335.5531775104. The cubic root of 11125915 is about 223.2433748238.

The spelling of 11125915 in words is "eleven million, one hundred twenty-five thousand, nine hundred fifteen".