13695138 has 12 divisors (see below), whose sum is σ = 29672838. Its totient is φ = 4565040.

The previous prime is 13695131. The next prime is 13695151. The reversal of 13695138 is 83159631.

It is a happy number.

13695138 is a `hidden beast` number, since 136 + 9 + 513 + 8 = 666.

It can be written as a sum of positive squares in only one way, i.e., 13373649 + 321489 = 3657^2 + 567^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (13695131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 380403 + ... + 380438.

Almost surely, 2^13695138 is an apocalyptic number.

13695138 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

13695138 is an abundant number, since it is smaller than the sum of its proper divisors (15977700).

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

13695138 is a wasteful number, since it uses less digits than its factorization.

13695138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 760849 (or 760846 counting only the distinct ones).

The product of its digits is 19440, while the sum is 36.

The square root of 13695138 is about 3700.6942591898. The cubic root of 13695138 is about 239.2519416253.

The spelling of 13695138 in words is "thirteen million, six hundred ninety-five thousand, one hundred thirty-eight".