203138701 has 2 divisors, whose sum is σ = 203138702. Its totient is φ = 203138700.

The previous prime is 203138699. The next prime is 203138731. The reversal of 203138701 is 107831302.

203138701 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 145226601 + 57912100 = 12051^2 + 7610^2 .

It is a cyclic number.

It is not a de Polignac number, because 203138701 - 2¹ = 203138699 is a prime.

Together with 203138699, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (203138731) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101569350 + 101569351.

It is an arithmetic number, because the mean of its divisors is an integer number (101569351).

Almost surely, 2^203138701 is an apocalyptic number.

It is an amenable number.

203138701 is a deficient number, since it is larger than the sum of its proper divisors (1).

203138701 is an equidigital number, since it uses as much as digits as its factorization.

203138701 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1008, while the sum is 25.

The square root of 203138701 is about 14252.6734685111. The cubic root of 203138701 is about 587.8468883044.

The spelling of 203138701 in words is "two hundred three million, one hundred thirty-eight thousand, seven hundred one".