12739454 has 16 divisors (see below), whose sum is σ = 23519328. Its totient is φ = 5039712.

The previous prime is 12739429. The next prime is 12739471. The reversal of 12739454 is 45493721.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 34817 + ... + 35180.

It is an arithmetic number, because the mean of its divisors is an integer number (1469958).

Almost surely, 2^12739454 is an apocalyptic number.

12739454 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

12739454 is a deficient number, since it is larger than the sum of its proper divisors (10779874).

12739454 is a wasteful number, since it uses less digits than its factorization.

12739454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70019.

The product of its digits is 30240, while the sum is 35.

The square root of 12739454 is about 3569.2371734027. The cubic root of 12739454 is about 233.5520076981.

The spelling of 12739454 in words is "twelve million, seven hundred thirty-nine thousand, four hundred fifty-four".