138261083 has 2 divisors, whose sum is σ = 138261084. Its totient is φ = 138261082.

The previous prime is 138261059. The next prime is 138261089. The reversal of 138261083 is 380162831.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-138261083 is a prime.

It is a super-2 number, since 2×138261083² = 38232254144665778, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (138261089) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 69130541 + 69130542.

It is an arithmetic number, because the mean of its divisors is an integer number (69130542).

Almost surely, 2^138261083 is an apocalyptic number.

138261083 is a deficient number, since it is larger than the sum of its proper divisors (1).

138261083 is an equidigital number, since it uses as much as digits as its factorization.

138261083 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6912, while the sum is 32.

The square root of 138261083 is about 11758.4473039598. The cubic root of 138261083 is about 517.0906101202.

The spelling of 138261083 in words is "one hundred thirty-eight million, two hundred sixty-one thousand, eighty-three".