138633016 has 8 divisors (see below), whose sum is σ = 259936920. Its totient is φ = 69316504.

The previous prime is 138633007. The next prime is 138633083. The reversal of 138633016 is 610336831.

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×138633016² = 38438226250512512, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8664556 + ... + 8664571.

It is an arithmetic number, because the mean of its divisors is an integer number (32492115).

Almost surely, 2^138633016 is an apocalyptic number.

It is an amenable number.

138633016 is a deficient number, since it is larger than the sum of its proper divisors (121303904).

138633016 is a wasteful number, since it uses less digits than its factorization.

138633016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17329133 (or 17329129 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 31.

The square root of 138633016 is about 11774.2522480198. The cubic root of 138633016 is about 517.5538662063.

Adding to 138633016 its reverse (610336831), we get a palindrome (748969847).

The spelling of 138633016 in words is "one hundred thirty-eight million, six hundred thirty-three thousand, sixteen".