138026156 has 12 divisors (see below), whose sum is σ = 241787280. Its totient is φ = 68944080.

The previous prime is 138026149. The next prime is 138026191. The reversal of 138026156 is 651620831.

It is a happy number.

It is a hoax number, since the sum of its digits (32) coincides with the sum of the digits of its distinct prime factors.

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, 12611 + ... + 20858.

It is an arithmetic number, because the mean of its divisors is an integer number (20148940).

Almost surely, 2^138026156 is an apocalyptic number.

It is an amenable number.

138026156 is a deficient number, since it is larger than the sum of its proper divisors (103761124).

138026156 is a wasteful number, since it uses less digits than its factorization.

138026156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34504 (or 34502 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 32.

The square root of 138026156 is about 11748.4533450152. The cubic root of 138026156 is about 516.7975717328.

Adding to 138026156 its reverse (651620831), we get a palindrome (789646987).

The spelling of 138026156 in words is "one hundred thirty-eight million, twenty-six thousand, one hundred fifty-six".