138351065 has 16 divisors (see below), whose sum is σ = 176109120. Its totient is φ = 104045760.

The previous prime is 138351023. The next prime is 138351071. The reversal of 138351065 is 560153831.

138351065 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 138351065 - 2⁶ = 138351001 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6887 + ... + 18003.

It is an arithmetic number, because the mean of its divisors is an integer number (11006820).

Almost surely, 2^138351065 is an apocalyptic number.

It is an amenable number.

138351065 is a deficient number, since it is larger than the sum of its proper divisors (37758055).

138351065 is a wasteful number, since it uses less digits than its factorization.

138351065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11272.

The product of its (nonzero) digits is 10800, while the sum is 32.

The square root of 138351065 is about 11762.2729521126. The cubic root of 138351065 is about 517.2027620868.

The spelling of 138351065 in words is "one hundred thirty-eight million, three hundred fifty-one thousand, sixty-five".