138336653 has 12 divisors (see below), whose sum is σ = 173301660. Its totient is φ = 109452672.

The previous prime is 138336643. The next prime is 138336677. The reversal of 138336653 is 356633831.

It can be written as a sum of positive squares in 2 ways, for example, as 33028009 + 105308644 = 5747^2 + 10262^2 .

It is not a de Polignac number, because 138336653 - 2⁶ = 138336589 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (138336623) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 107948 + ... + 109221.

It is an arithmetic number, because the mean of its divisors is an integer number (14441805).

Almost surely, 2^138336653 is an apocalyptic number.

138336653 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

138336653 is a deficient number, since it is larger than the sum of its proper divisors (34965007).

138336653 is a wasteful number, since it uses less digits than its factorization.

138336653 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 217196 (or 217189 counting only the distinct ones).

The product of its digits is 116640, while the sum is 38.

The square root of 138336653 is about 11761.6602994645. The cubic root of 138336653 is about 517.1848024972.

The spelling of 138336653 in words is "one hundred thirty-eight million, three hundred thirty-six thousand, six hundred fifty-three".