138361352 has 16 divisors (see below), whose sum is σ = 266439660. Its totient is φ = 67310784.

The previous prime is 138361343. The next prime is 138361357. The reversal of 138361352 is 253163831.

It can be written as a sum of positive squares in 2 ways, for example, as 133494916 + 4866436 = 11554^2 + 2206^2 .

It is not an unprimeable number, because it can be changed into a prime (138361357) 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, 233423 + ... + 234014.

Almost surely, 2^138361352 is an apocalyptic number.

It is an amenable number.

138361352 is a deficient number, since it is larger than the sum of its proper divisors (128078308).

138361352 is a wasteful number, since it uses less digits than its factorization.

138361352 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 467480 (or 467476 counting only the distinct ones).

The product of its digits is 12960, while the sum is 32.

The square root of 138361352 is about 11762.7102319151. The cubic root of 138361352 is about 517.2155805231.

The spelling of 138361352 in words is "one hundred thirty-eight million, three hundred sixty-one thousand, three hundred fifty-two".