11725171 has 4 divisors (see below), whose sum is σ = 11732344. Its totient is φ = 11718000.

The previous prime is 11725169. The next prime is 11725177. The reversal of 11725171 is 17152711.

11725171 is digitally balanced in base 3, 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 a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 17152711 = 17 ⋅1008983.

It is a cyclic number.

It is not a de Polignac number, because 11725171 - 2¹ = 11725169 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11725177) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 196 + ... + 4846.

It is an arithmetic number, because the mean of its divisors is an integer number (2933086).

Almost surely, 2^11725171 is an apocalyptic number.

11725171 is a deficient number, since it is larger than the sum of its proper divisors (7173).

11725171 is an equidigital number, since it uses as much as digits as its factorization.

11725171 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7172.

The product of its digits is 490, while the sum is 25.

The square root of 11725171 is about 3424.2037030527. The cubic root of 11725171 is about 227.1815517963.

Adding to 11725171 its reverse (17152711), we get a palindrome (28877882).

The spelling of 11725171 in words is "eleven million, seven hundred twenty-five thousand, one hundred seventy-one".