13906250 has 32 divisors (see below), whose sum is σ = 26367120. Its totient is φ = 5500000.

The previous prime is 13906183. The next prime is 13906261. The reversal of 13906250 is 5260931.

It can be written as a sum of positive squares in 8 ways, for example, as 13697401 + 208849 = 3701^2 + 457^2 .

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 156206 + ... + 156294.

Almost surely, 2^13906250 is an apocalyptic number.

13906250 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13906250 is a deficient number, since it is larger than the sum of its proper divisors (12460870).

13906250 is an frugal number, since it uses more digits than its factorization.

13906250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126 (or 96 counting only the distinct ones).

The product of its (nonzero) digits is 1620, while the sum is 26.

The square root of 13906250 is about 3729.1084725441. The cubic root of 13906250 is about 240.4750429019.

The spelling of 13906250 in words is "thirteen million, nine hundred six thousand, two hundred fifty".