12840501 has 8 divisors (see below), whose sum is σ = 17166240. Its totient is φ = 8537552.

The previous prime is 12840493. The next prime is 12840539. The reversal of 12840501 is 10504821.

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 12840501 - 2³ = 12840493 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 (12840551) 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, 4335 + ... + 6668.

It is an arithmetic number, because the mean of its divisors is an integer number (2145780).

Almost surely, 2^12840501 is an apocalyptic number.

It is an amenable number.

12840501 is a deficient number, since it is larger than the sum of its proper divisors (4325739).

12840501 is a wasteful number, since it uses less digits than its factorization.

12840501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11395.

The product of its (nonzero) digits is 320, while the sum is 21.

The square root of 12840501 is about 3583.3644804848. The cubic root of 12840501 is about 234.1678793828.

The spelling of 12840501 in words is "twelve million, eight hundred forty thousand, five hundred one".