12951347 has 4 divisors (see below), whose sum is σ = 12970080. Its totient is φ = 12932616.

The previous prime is 12951329. The next prime is 12951353. The reversal of 12951347 is 74315921.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 74315921 = 23 ⋅3231127.

It is a cyclic number.

It is not a de Polignac number, because 12951347 - 2⁶ = 12951283 is a prime.

It is a super-2 number, since 2×12951347² = 335474778228818, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12951307) 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, 8288 + ... + 9725.

It is an arithmetic number, because the mean of its divisors is an integer number (3242520).

Almost surely, 2^12951347 is an apocalyptic number.

12951347 is a deficient number, since it is larger than the sum of its proper divisors (18733).

12951347 is an equidigital number, since it uses as much as digits as its factorization.

12951347 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18732.

The product of its digits is 7560, while the sum is 32.

The square root of 12951347 is about 3598.7979937751. The cubic root of 12951347 is about 234.8397700570.

The spelling of 12951347 in words is "twelve million, nine hundred fifty-one thousand, three hundred forty-seven".