138283916 has 12 divisors (see below), whose sum is σ = 256232088. Its totient is φ = 65074752.

The previous prime is 138283907. The next prime is 138283927. The reversal of 138283916 is 619382831.

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, 1016726 + ... + 1016861.

It is an arithmetic number, because the mean of its divisors is an integer number (21352674).

Almost surely, 2^138283916 is an apocalyptic number.

It is an amenable number.

138283916 is a deficient number, since it is larger than the sum of its proper divisors (117948172).

138283916 is a wasteful number, since it uses less digits than its factorization.

138283916 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2033608 (or 2033606 counting only the distinct ones).

The product of its digits is 62208, while the sum is 41.

The square root of 138283916 is about 11759.4181828864. The cubic root of 138283916 is about 517.1190733719.

The spelling of 138283916 in words is "one hundred thirty-eight million, two hundred eighty-three thousand, nine hundred sixteen".