138780083 has 8 divisors (see below), whose sum is σ = 149784768. Its totient is φ = 127822464.

The previous prime is 138780077. The next prime is 138780101. The reversal of 138780083 is 380087831.

138780083 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 cyclic number.

It is not a de Polignac number, because 138780083 - 2⁸ = 138779827 is a prime.

It is a super-2 number, since 2×138780083² = 38519822874973778, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (138785083) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5510 + ... + 17547.

It is an arithmetic number, because the mean of its divisors is an integer number (18723096).

Almost surely, 2^138780083 is an apocalyptic number.

138780083 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

138780083 is a deficient number, since it is larger than the sum of its proper divisors (11004685).

138780083 is a wasteful number, since it uses less digits than its factorization.

138780083 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23533.

The product of its (nonzero) digits is 32256, while the sum is 38.

The square root of 138780083 is about 11780.4958724156. The cubic root of 138780083 is about 517.7368149181.

The spelling of 138780083 in words is "one hundred thirty-eight million, seven hundred eighty thousand, eighty-three".