11925915 has 16 divisors (see below), whose sum is σ = 19127328. Its totient is φ = 6345216.

The previous prime is 11925913. The next prime is 11925961. The reversal of 11925915 is 51952911.

It is a happy number.

It is not a de Polignac number, because 11925915 - 2¹ = 11925913 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11925913) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8547 + ... + 9843.

It is an arithmetic number, because the mean of its divisors is an integer number (1195458).

Almost surely, 2^11925915 is an apocalyptic number.

11925915 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

11925915 is a deficient number, since it is larger than the sum of its proper divisors (7201413).

11925915 is a wasteful number, since it uses less digits than its factorization.

11925915 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1918.

The product of its digits is 4050, while the sum is 33.

The square root of 11925915 is about 3453.3918109592. The cubic root of 11925915 is about 228.4707302900.

The spelling of 11925915 in words is "eleven million, nine hundred twenty-five thousand, nine hundred fifteen".