138043383 has 32 divisors (see below), whose sum is σ = 200931840. Its totient is φ = 83973120.

The previous prime is 138043363. The next prime is 138043387. The reversal of 138043383 is 383340831.

It is not a de Polignac number, because 138043383 - 2⁸ = 138043127 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (138043387) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 242323 + ... + 242891.

It is an arithmetic number, because the mean of its divisors is an integer number (6279120).

Almost surely, 2^138043383 is an apocalyptic number.

138043383 is a deficient number, since it is larger than the sum of its proper divisors (62888457).

138043383 is a wasteful number, since it uses less digits than its factorization.

138043383 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 727.

The product of its (nonzero) digits is 20736, while the sum is 33.

The square root of 138043383 is about 11749.1864824761. The cubic root of 138043383 is about 516.8190712844.

The spelling of 138043383 in words is "one hundred thirty-eight million, forty-three thousand, three hundred eighty-three".