138000901 has 2 divisors, whose sum is σ = 138000902. Its totient is φ = 138000900.

The previous prime is 138000887. The next prime is 138000931. The reversal of 138000901 is 109000831.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 132365025 + 5635876 = 11505^2 + 2374^2 .

It is a cyclic number.

It is not a de Polignac number, because 138000901 - 2⁹ = 138000389 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (138000931) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 69000450 + 69000451.

It is an arithmetic number, because the mean of its divisors is an integer number (69000451).

Almost surely, 2^138000901 is an apocalyptic number.

It is an amenable number.

138000901 is a deficient number, since it is larger than the sum of its proper divisors (1).

138000901 is an equidigital number, since it uses as much as digits as its factorization.

138000901 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 216, while the sum is 22.

The square root of 138000901 is about 11747.3784735148. The cubic root of 138000901 is about 516.7660498842.

The spelling of 138000901 in words is "one hundred thirty-eight million, nine hundred one", and thus it is an aban number.