138770099 has 8 divisors (see below), whose sum is σ = 158235840. Its totient is φ = 120560256.

The previous prime is 138770089. The next prime is 138770111. The reversal of 138770099 is 990077831.

138770099 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 138770099 - 2⁴ = 138770083 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (138770029) 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, 313739 + ... + 314180.

It is an arithmetic number, because the mean of its divisors is an integer number (19779480).

Almost surely, 2^138770099 is an apocalyptic number.

138770099 is a deficient number, since it is larger than the sum of its proper divisors (19465741).

138770099 is a wasteful number, since it uses less digits than its factorization.

138770099 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 627949.

The product of its (nonzero) digits is 95256, while the sum is 44.

The square root of 138770099 is about 11780.0721135314. The cubic root of 138770099 is about 517.7243990916.

The spelling of 138770099 in words is "one hundred thirty-eight million, seven hundred seventy thousand, ninety-nine".