13923261 has 12 divisors (see below), whose sum is σ = 21939840. Its totient is φ = 8438280.

The previous prime is 13923253. The next prime is 13923263. The reversal of 13923261 is 16232931.

It is not a de Polignac number, because 13923261 - 2³ = 13923253 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13923263) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 70221 + ... + 70418.

It is an arithmetic number, because the mean of its divisors is an integer number (1828320).

Almost surely, 2^13923261 is an apocalyptic number.

13923261 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

13923261 is a deficient number, since it is larger than the sum of its proper divisors (8016579).

13923261 is a wasteful number, since it uses less digits than its factorization.

13923261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140656 (or 140653 counting only the distinct ones).

The product of its digits is 1944, while the sum is 27.

The square root of 13923261 is about 3731.3886155157. The cubic root of 13923261 is about 240.5730576813.

The spelling of 13923261 in words is "thirteen million, nine hundred twenty-three thousand, two hundred sixty-one".