138048049 has 2 divisors, whose sum is σ = 138048050. Its totient is φ = 138048048.

The previous prime is 138048013. The next prime is 138048061. The reversal of 138048049 is 940840831.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 71707024 + 66341025 = 8468^2 + 8145^2 .

It is a cyclic number.

It is not a de Polignac number, because 138048049 - 2¹³ = 138039857 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 138047999 and 138048017.

It is not a weakly prime, because it can be changed into another prime (138048749) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 69024024 + 69024025.

It is an arithmetic number, because the mean of its divisors is an integer number (69024025).

Almost surely, 2^138048049 is an apocalyptic number.

It is an amenable number.

138048049 is a deficient number, since it is larger than the sum of its proper divisors (1).

138048049 is an equidigital number, since it uses as much as digits as its factorization.

138048049 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 27648, while the sum is 37.

The square root of 138048049 is about 11749.3850477376. The cubic root of 138048049 is about 516.8248942138.

The spelling of 138048049 in words is "one hundred thirty-eight million, forty-eight thousand, forty-nine".