12761172 has 48 divisors (see below), whose sum is σ = 33324480. Its totient is φ = 4222944.

The previous prime is 12761171. The next prime is 12761197. The reversal of 12761172 is 27116721.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12761171) 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, 18343 + ... + 19025.

It is an arithmetic number, because the mean of its divisors is an integer number (694260).

Almost surely, 2^12761172 is an apocalyptic number.

12761172 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12761172, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16662240).

12761172 is an abundant number, since it is smaller than the sum of its proper divisors (20563308).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12761172 is a wasteful number, since it uses less digits than its factorization.

12761172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 869 (or 861 counting only the distinct ones).

The product of its digits is 1176, while the sum is 27.

The square root of 12761172 is about 3572.2782646373. The cubic root of 12761172 is about 233.6846508200.

Adding to 12761172 its reverse (27116721), we get a palindrome (39877893).

The spelling of 12761172 in words is "twelve million, seven hundred sixty-one thousand, one hundred seventy-two".