12914509 has 8 divisors (see below), whose sum is σ = 14394240. Its totient is φ = 11514816.

The previous prime is 12914501. The next prime is 12914513. The reversal of 12914509 is 90541921.

12914509 = 478² + 479² + ... + 528².

12914509 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 12914509 - 2³ = 12914501 is a prime.

It is a super-2 number, since 2×12914509² = 333569085422162, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12914501) 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, 19669 + ... + 20314.

It is an arithmetic number, because the mean of its divisors is an integer number (1799280).

Almost surely, 2^12914509 is an apocalyptic number.

12914509 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

12914509 is a deficient number, since it is larger than the sum of its proper divisors (1479731).

12914509 is a wasteful number, since it uses less digits than its factorization.

12914509 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40019.

The product of its (nonzero) digits is 3240, while the sum is 31.

The square root of 12914509 is about 3593.6762514172. The cubic root of 12914509 is about 234.6169041116.

The spelling of 12914509 in words is "twelve million, nine hundred fourteen thousand, five hundred nine".