138137582 has 16 divisors (see below), whose sum is σ = 227197872. Its totient is φ = 62469120.

The previous prime is 138137533. The next prime is 138137591. The reversal of 138137582 is 285731831.

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 7 ways as a sum of consecutive naturals, for example, 11603 + ... + 20270.

It is an arithmetic number, because the mean of its divisors is an integer number (14199867).

Almost surely, 2^138137582 is an apocalyptic number.

138137582 is a deficient number, since it is larger than the sum of its proper divisors (89060290).

138137582 is a wasteful number, since it uses less digits than its factorization.

138137582 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32083.

The product of its digits is 40320, while the sum is 38.

The square root of 138137582 is about 11753.1945444632. The cubic root of 138137582 is about 516.9366014142.

The spelling of 138137582 in words is "one hundred thirty-eight million, one hundred thirty-seven thousand, five hundred eighty-two".