201139943 has 2 divisors, whose sum is σ = 201139944. Its totient is φ = 201139942.

The previous prime is 201139921. The next prime is 201139957. The reversal of 201139943 is 349931102.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-201139943 is a prime.

It is equal to p_11138666 and since 201139943 and 11138666 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (201139993) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100569971 + 100569972.

It is an arithmetic number, because the mean of its divisors is an integer number (100569972).

Almost surely, 2^201139943 is an apocalyptic number.

201139943 is a deficient number, since it is larger than the sum of its proper divisors (1).

201139943 is an equidigital number, since it uses as much as digits as its factorization.

201139943 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5832, while the sum is 32.

The square root of 201139943 is about 14182.3814290831. The cubic root of 201139943 is about 585.9125145560.

The spelling of 201139943 in words is "two hundred one million, one hundred thirty-nine thousand, nine hundred forty-three".