138182526 has 12 divisors (see below), whose sum is σ = 299395512. Its totient is φ = 46060836.

The previous prime is 138182483. The next prime is 138182533. The reversal of 138182526 is 625281831.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3838386 + ... + 3838421.

It is an arithmetic number, because the mean of its divisors is an integer number (24949626).

Almost surely, 2^138182526 is an apocalyptic number.

138182526 is an abundant number, since it is smaller than the sum of its proper divisors (161212986).

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

138182526 is a wasteful number, since it uses less digits than its factorization.

138182526 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7676815 (or 7676812 counting only the distinct ones).

The product of its digits is 23040, while the sum is 36.

The square root of 138182526 is about 11755.1063797824. The cubic root of 138182526 is about 516.9926582792.

The spelling of 138182526 in words is "one hundred thirty-eight million, one hundred eighty-two thousand, five hundred twenty-six".