138283575 has 24 divisors (see below), whose sum is σ = 231532800. Its totient is φ = 72814560.

The previous prime is 138283573. The next prime is 138283589. The reversal of 138283575 is 575382831.

It is not a de Polignac number, because 138283575 - 2¹ = 138283573 is a prime.

It is a super-2 number, since 2×138283575² = 38244694229561250, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (138283573) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5745 + ... + 17594.

It is an arithmetic number, because the mean of its divisors is an integer number (9647200).

Almost surely, 2^138283575 is an apocalyptic number.

138283575 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

138283575 is a deficient number, since it is larger than the sum of its proper divisors (93249225).

138283575 is a wasteful number, since it uses less digits than its factorization.

138283575 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23431 (or 23426 counting only the distinct ones).

The product of its digits is 201600, while the sum is 42.

The square root of 138283575 is about 11759.4036838608. The cubic root of 138283575 is about 517.1186483098.

The spelling of 138283575 in words is "one hundred thirty-eight million, two hundred eighty-three thousand, five hundred seventy-five".