13775140 has 12 divisors (see below), whose sum is σ = 28927836. Its totient is φ = 5510048.

The previous prime is 13775107. The next prime is 13775147. The reversal of 13775140 is 4157731.

It can be written as a sum of positive squares in 2 ways, for example, as 2377764 + 11397376 = 1542^2 + 3376^2 .

It is a junction number, because it is equal to n+sod(n) for n = 13775099 and 13775108.

It is not an unprimeable number, because it can be changed into a prime (13775147) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 344359 + ... + 344398.

It is an arithmetic number, because the mean of its divisors is an integer number (2410653).

Almost surely, 2^13775140 is an apocalyptic number.

13775140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13775140 is an abundant number, since it is smaller than the sum of its proper divisors (15152696).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13775140 is a wasteful number, since it uses less digits than its factorization.

13775140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 688766 (or 688764 counting only the distinct ones).

The product of its (nonzero) digits is 2940, while the sum is 28.

The square root of 13775140 is about 3711.4875723893. The cubic root of 13775140 is about 239.7169115890.

The spelling of 13775140 in words is "thirteen million, seven hundred seventy-five thousand, one hundred forty".