13875140 has 12 divisors (see below), whose sum is σ = 29137836. Its totient is φ = 5550048.

The previous prime is 13875139. The next prime is 13875151. The reversal of 13875140 is 4157831.

It can be written as a sum of positive squares in 2 ways, for example, as 2027776 + 11847364 = 1424^2 + 3442^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 346859 + ... + 346898.

It is an arithmetic number, because the mean of its divisors is an integer number (2428153).

Almost surely, 2^13875140 is an apocalyptic number.

13875140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13875140 is an abundant number, since it is smaller than the sum of its proper divisors (15262696).

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

13875140 is a wasteful number, since it uses less digits than its factorization.

13875140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 693766 (or 693764 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 29.

The square root of 13875140 is about 3724.9348987600. The cubic root of 13875140 is about 240.2955848812.

The spelling of 13875140 in words is "thirteen million, eight hundred seventy-five thousand, one hundred forty".