138162338 has 16 divisors (see below), whose sum is σ = 220405920. Its totient is φ = 64768896.

The previous prime is 138162307. The next prime is 138162373. The reversal of 138162338 is 833261831.

It is a junction number, because it is equal to n+sod(n) for n = 138162298 and 138162307.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15056 + ... + 22427.

It is an arithmetic number, because the mean of its divisors is an integer number (13775370).

Almost surely, 2^138162338 is an apocalyptic number.

138162338 is a deficient number, since it is larger than the sum of its proper divisors (82243582).

138162338 is a wasteful number, since it uses less digits than its factorization.

138162338 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37601.

The product of its digits is 20736, while the sum is 35.

The square root of 138162338 is about 11754.2476577619. The cubic root of 138162338 is about 516.9674800931.

The spelling of 138162338 in words is "one hundred thirty-eight million, one hundred sixty-two thousand, three hundred thirty-eight".