138016049 has 4 divisors (see below), whose sum is σ = 138042864. Its totient is φ = 137989236.

The previous prime is 138016003. The next prime is 138016079. The reversal of 138016049 is 940610831.

It is a happy number.

138016049 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 138016049 - 2²⁰ = 136967473 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (138016079) 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, 2987 + ... + 16880.

It is an arithmetic number, because the mean of its divisors is an integer number (34510716).

Almost surely, 2^138016049 is an apocalyptic number.

It is an amenable number.

138016049 is a deficient number, since it is larger than the sum of its proper divisors (26815).

138016049 is an equidigital number, since it uses as much as digits as its factorization.

138016049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26814.

The product of its (nonzero) digits is 5184, while the sum is 32.

The square root of 138016049 is about 11748.0231954146. The cubic root of 138016049 is about 516.7849572141.

The spelling of 138016049 in words is "one hundred thirty-eight million, sixteen thousand, forty-nine".