13909275 has 18 divisors (see below), whose sum is σ = 24913460. Its totient is φ = 7418160.

The previous prime is 13909261. The next prime is 13909277. The reversal of 13909275 is 57290931.

It is not a de Polignac number, because 13909275 - 2⁵ = 13909243 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13909277) 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 17 ways as a sum of consecutive naturals, for example, 30685 + ... + 31134.

Almost surely, 2^13909275 is an apocalyptic number.

13909275 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

13909275 is a deficient number, since it is larger than the sum of its proper divisors (11004185).

13909275 is a wasteful number, since it uses less digits than its factorization.

13909275 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61835 (or 61827 counting only the distinct ones).

The product of its (nonzero) digits is 17010, while the sum is 36.

The square root of 13909275 is about 3729.5140434110. The cubic root of 13909275 is about 240.4924783300.

The spelling of 13909275 in words is "thirteen million, nine hundred nine thousand, two hundred seventy-five".