138260141 has 2 divisors, whose sum is σ = 138260142. Its totient is φ = 138260140.

The previous prime is 138260119. The next prime is 138260147. The reversal of 138260141 is 141062831.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 124791241 + 13468900 = 11171^2 + 3670^2 .

It is a cyclic number.

It is not a de Polignac number, because 138260141 - 2¹⁸ = 137997997 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 138260141.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (138260147) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 69130070 + 69130071.

It is an arithmetic number, because the mean of its divisors is an integer number (69130071).

Almost surely, 2^138260141 is an apocalyptic number.

It is an amenable number.

138260141 is a deficient number, since it is larger than the sum of its proper divisors (1).

138260141 is an equidigital number, since it uses as much as digits as its factorization.

138260141 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1152, while the sum is 26.

The square root of 138260141 is about 11758.4072475825. The cubic root of 138260141 is about 517.0894357708.

The spelling of 138260141 in words is "one hundred thirty-eight million, two hundred sixty thousand, one hundred forty-one".