138650216 has 16 divisors (see below), whose sum is σ = 260094240. Its totient is φ = 69291760.

The previous prime is 138650207. The next prime is 138650219. The reversal of 138650216 is 612056831.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (138650219) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 29381 + ... + 33771.

It is an arithmetic number, because the mean of its divisors is an integer number (16255890).

Almost surely, 2^138650216 is an apocalyptic number.

It is an amenable number.

138650216 is a deficient number, since it is larger than the sum of its proper divisors (121444024).

138650216 is a wasteful number, since it uses less digits than its factorization.

138650216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8344 (or 8340 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 32.

The square root of 138650216 is about 11774.9826326836. The cubic root of 138650216 is about 517.5752693772.

The spelling of 138650216 in words is "one hundred thirty-eight million, six hundred fifty thousand, two hundred sixteen".