138962353 has 4 divisors (see below), whose sum is σ = 139094388. Its totient is φ = 138830320.

The previous prime is 138962323. The next prime is 138962359. The reversal of 138962353 is 353269831.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 111682624 + 27279729 = 10568^2 + 5223^2 .

It is a cyclic number.

It is not a de Polignac number, because 138962353 - 2⁵ = 138962321 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (138962359) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 64426 + ... + 66547.

It is an arithmetic number, because the mean of its divisors is an integer number (34773597).

Almost surely, 2^138962353 is an apocalyptic number.

It is an amenable number.

138962353 is a deficient number, since it is larger than the sum of its proper divisors (132035).

138962353 is a wasteful number, since it uses less digits than its factorization.

138962353 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132034.

The product of its digits is 116640, while the sum is 40.

The square root of 138962353 is about 11788.2294259995. The cubic root of 138962353 is about 517.9633762611.

The spelling of 138962353 in words is "one hundred thirty-eight million, nine hundred sixty-two thousand, three hundred fifty-three".