11921125 has 8 divisors (see below), whose sum is σ = 14877720. Its totient is φ = 9536800.

The previous prime is 11921101. The next prime is 11921137. The reversal of 11921125 is 52112911.

It can be written as a sum of positive squares in 4 ways, for example, as 2490084 + 9431041 = 1578^2 + 3071^2 .

It is not a de Polignac number, because 11921125 - 2⁹ = 11920613 is a prime.

It is a super-2 number, since 2×11921125² = 284226442531250, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 11921096 and 11921105.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 47560 + ... + 47809.

It is an arithmetic number, because the mean of its divisors is an integer number (1859715).

Almost surely, 2^11921125 is an apocalyptic number.

It is an amenable number.

11921125 is a deficient number, since it is larger than the sum of its proper divisors (2956595).

11921125 is an frugal number, since it uses more digits than its factorization.

11921125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95384 (or 95374 counting only the distinct ones).

The product of its digits is 180, while the sum is 22.

The square root of 11921125 is about 3452.6982202330. The cubic root of 11921125 is about 228.4401380503.

The spelling of 11921125 in words is "eleven million, nine hundred twenty-one thousand, one hundred twenty-five".