138205076 has 12 divisors (see below), whose sum is σ = 241963680. Its totient is φ = 69072600.

The previous prime is 138205061. The next prime is 138205103. The reversal of 138205076 is 670502831.

It is a happy number.

138205076 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 a congruent number.

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, 5345 + ... + 17463.

It is an arithmetic number, because the mean of its divisors is an integer number (20163640).

Almost surely, 2^138205076 is an apocalyptic number.

It is an amenable number.

138205076 is a deficient number, since it is larger than the sum of its proper divisors (103758604).

138205076 is a wasteful number, since it uses less digits than its factorization.

138205076 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14974 (or 14972 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 32.

The square root of 138205076 is about 11756.0654982864. The cubic root of 138205076 is about 517.0207794189.

The spelling of 138205076 in words is "one hundred thirty-eight million, two hundred five thousand, seventy-six".