138746834 has 8 divisors (see below), whose sum is σ = 208314288. Its totient is φ = 69308740.

The previous prime is 138746813. The next prime is 138746849. The reversal of 138746834 is 438647831.

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

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, 29612 + ... + 33975.

It is an arithmetic number, because the mean of its divisors is an integer number (26039286).

Almost surely, 2^138746834 is an apocalyptic number.

138746834 is a deficient number, since it is larger than the sum of its proper divisors (69567454).

138746834 is a wasteful number, since it uses less digits than its factorization.

138746834 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64680.

The product of its digits is 387072, while the sum is 44.

The square root of 138746834 is about 11779.0845994075. The cubic root of 138746834 is about 517.6954650695.

The spelling of 138746834 in words is "one hundred thirty-eight million, seven hundred forty-six thousand, eight hundred thirty-four".