138344582 has 8 divisors (see below), whose sum is σ = 208013400. Its totient is φ = 69006784.

The previous prime is 138344573. The next prime is 138344593. The reversal of 138344582 is 285443831.

It is a happy number.

138344582 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

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, 81707 + ... + 83382.

It is an arithmetic number, because the mean of its divisors is an integer number (26001675).

Almost surely, 2^138344582 is an apocalyptic number.

138344582 is a deficient number, since it is larger than the sum of its proper divisors (69668818).

138344582 is a wasteful number, since it uses less digits than its factorization.

138344582 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 165510.

The product of its digits is 92160, while the sum is 38.

The square root of 138344582 is about 11761.9973643935. The cubic root of 138344582 is about 517.1946834166.

The spelling of 138344582 in words is "one hundred thirty-eight million, three hundred forty-four thousand, five hundred eighty-two".