12712605 has 8 divisors (see below), whose sum is σ = 20340192. Its totient is φ = 6780048.

The previous prime is 12712603. The next prime is 12712619. The reversal of 12712605 is 50621721.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12712605 - 2¹ = 12712603 is a prime.

It is a super-2 number, since 2×12712605² = 323220651772050, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12712603) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 423739 + ... + 423768.

It is an arithmetic number, because the mean of its divisors is an integer number (2542524).

Almost surely, 2^12712605 is an apocalyptic number.

12712605 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12712605 is a deficient number, since it is larger than the sum of its proper divisors (7627587).

12712605 is an equidigital number, since it uses as much as digits as its factorization.

12712605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 847515.

The product of its (nonzero) digits is 840, while the sum is 24.

The square root of 12712605 is about 3565.4740217817. The cubic root of 12712605 is about 233.3878183421.

The spelling of 12712605 in words is "twelve million, seven hundred twelve thousand, six hundred five".