138283533 has 6 divisors (see below), whose sum is σ = 199742894. Its totient is φ = 92189016.

The previous prime is 138283531. The next prime is 138283543. The reversal of 138283533 is 335382831.

It can be written as a sum of positive squares in only one way, i.e., 136469124 + 1814409 = 11682^2 + 1347^2 .

It is not a de Polignac number, because 138283533 - 2¹ = 138283531 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (138283531) 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 5 ways as a sum of consecutive naturals, for example, 7682410 + ... + 7682427.

Almost surely, 2^138283533 is an apocalyptic number.

It is an amenable number.

138283533 is a deficient number, since it is larger than the sum of its proper divisors (61459361).

138283533 is a wasteful number, since it uses less digits than its factorization.

138283533 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15364843 (or 15364840 counting only the distinct ones).

The product of its digits is 51840, while the sum is 36.

The square root of 138283533 is about 11759.4018980559. The cubic root of 138283533 is about 517.1185959561.

The spelling of 138283533 in words is "one hundred thirty-eight million, two hundred eighty-three thousand, five hundred thirty-three".