12625161 has 4 divisors (see below), whose sum is σ = 16833552. Its totient is φ = 8416772.

The previous prime is 12625141. The next prime is 12625181. The reversal of 12625161 is 16152621.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (12625141) and next prime (12625181).

It is a cyclic number.

It is not a de Polignac number, because 12625161 - 2⁶ = 12625097 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12625111) 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, 2104191 + ... + 2104196.

It is an arithmetic number, because the mean of its divisors is an integer number (4208388).

Almost surely, 2^12625161 is an apocalyptic number.

It is an amenable number.

12625161 is a deficient number, since it is larger than the sum of its proper divisors (4208391).

12625161 is an equidigital number, since it uses as much as digits as its factorization.

12625161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4208390.

The product of its digits is 720, while the sum is 24.

The square root of 12625161 is about 3553.1902566567. The cubic root of 12625161 is about 232.8514651926.

Adding to 12625161 its reverse (16152621), we get a palindrome (28777782).

The spelling of 12625161 in words is "twelve million, six hundred twenty-five thousand, one hundred sixty-one".