138513283 has 2 divisors, whose sum is σ = 138513284. Its totient is φ = 138513282.

The previous prime is 138513269. The next prime is 138513289. The reversal of 138513283 is 382315831.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-138513283 is a prime.

It is not a weakly prime, because it can be changed into another prime (138513289) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 69256641 + 69256642.

It is an arithmetic number, because the mean of its divisors is an integer number (69256642).

Almost surely, 2^138513283 is an apocalyptic number.

138513283 is a deficient number, since it is larger than the sum of its proper divisors (1).

138513283 is an equidigital number, since it uses as much as digits as its factorization.

138513283 is an evil number, because the sum of its binary digits is even.

The product of its digits is 17280, while the sum is 34.

The square root of 138513283 is about 11769.1666230027. The cubic root of 138513283 is about 517.4048249283.

The spelling of 138513283 in words is "one hundred thirty-eight million, five hundred thirteen thousand, two hundred eighty-three".