138076577 has 2 divisors, whose sum is σ = 138076578. Its totient is φ = 138076576.

The previous prime is 138076537. The next prime is 138076583. The reversal of 138076577 is 775670831.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 127938721 + 10137856 = 11311^2 + 3184^2 .

It is a cyclic number.

It is not a de Polignac number, because 138076577 - 2⁸ = 138076321 is a prime.

It is a super-2 number, since 2×138076577² = 38130282232073858, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (138076517) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 69038288 + 69038289.

It is an arithmetic number, because the mean of its divisors is an integer number (69038289).

Almost surely, 2^138076577 is an apocalyptic number.

It is an amenable number.

138076577 is a deficient number, since it is larger than the sum of its proper divisors (1).

138076577 is an equidigital number, since it uses as much as digits as its factorization.

138076577 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 246960, while the sum is 44.

The square root of 138076577 is about 11750.5990060082. The cubic root of 138076577 is about 516.8604928458.

The spelling of 138076577 in words is "one hundred thirty-eight million, seventy-six thousand, five hundred seventy-seven".