12961725 has 36 divisors (see below), whose sum is σ = 24935904. Its totient is φ = 5923680.

The previous prime is 12961723. The next prime is 12961727. The reversal of 12961725 is 52716921.

12961725 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (12961723) and next prime (12961727).

It is not a de Polignac number, because 12961725 - 2¹ = 12961723 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12961721) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 1912 + ... + 5438.

It is an arithmetic number, because the mean of its divisors is an integer number (692664).

Almost surely, 2^12961725 is an apocalyptic number.

12961725 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12961725 is a deficient number, since it is larger than the sum of its proper divisors (11974179).

12961725 is a wasteful number, since it uses less digits than its factorization.

12961725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3554 (or 3542 counting only the distinct ones).

The product of its digits is 7560, while the sum is 33.

The square root of 12961725 is about 3600.2395753616. The cubic root of 12961725 is about 234.9024795304.

The spelling of 12961725 in words is "twelve million, nine hundred sixty-one thousand, seven hundred twenty-five".