12840951 has 8 divisors (see below), whose sum is σ = 17161200. Its totient is φ = 8540672.

The previous prime is 12840943. The next prime is 12840953. The reversal of 12840951 is 15904821.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 12840951 - 2³ = 12840943 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12840953) 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, 3420 + ... + 6113.

It is an arithmetic number, because the mean of its divisors is an integer number (2145150).

Almost surely, 2^12840951 is an apocalyptic number.

12840951 is a deficient number, since it is larger than the sum of its proper divisors (4320249).

12840951 is an equidigital number, since it uses as much as digits as its factorization.

12840951 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9985.

The product of its (nonzero) digits is 2880, while the sum is 30.

The square root of 12840951 is about 3583.4272700866. The cubic root of 12840951 is about 234.1706148502.

The spelling of 12840951 in words is "twelve million, eight hundred forty thousand, nine hundred fifty-one".