14830781 has 12 divisors (see below), whose sum is σ = 17327772. Its totient is φ = 12656448.

The previous prime is 14830763. The next prime is 14830787. The reversal of 14830781 is 18703841.

It can be written as a sum of positive squares in 2 ways, for example, as 14182756 + 648025 = 3766^2 + 805^2 .

It is not a de Polignac number, because 14830781 - 2¹⁰ = 14829757 is a prime.

It is a super-2 number, since 2×14830781² = 439904130139922, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14830787) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13841 + ... + 14873.

It is an arithmetic number, because the mean of its divisors is an integer number (1443981).

Almost surely, 2^14830781 is an apocalyptic number.

It is an amenable number.

14830781 is a deficient number, since it is larger than the sum of its proper divisors (2496991).

14830781 is a wasteful number, since it uses less digits than its factorization.

14830781 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1340 (or 1333 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 32.

The square root of 14830781 is about 3851.0753043793. The cubic root of 14830781 is about 245.6902981264.

The spelling of 14830781 in words is "fourteen million, eight hundred thirty thousand, seven hundred eighty-one".