201906143 has 2 divisors, whose sum is σ = 201906144. Its totient is φ = 201906142.

The previous prime is 201906137. The next prime is 201906163. The reversal of 201906143 is 341609102.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 201906143 - 2¹⁴ = 201889759 is a prime.

It is a super-2 number, since 2×201906143² = 81532181162272898, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (201906163) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100953071 + 100953072.

It is an arithmetic number, because the mean of its divisors is an integer number (100953072).

Almost surely, 2^201906143 is an apocalyptic number.

201906143 is a deficient number, since it is larger than the sum of its proper divisors (1).

201906143 is an equidigital number, since it uses as much as digits as its factorization.

201906143 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1296, while the sum is 26.

The square root of 201906143 is about 14209.3681421800. The cubic root of 201906143 is about 586.6555417498.

The spelling of 201906143 in words is "two hundred one million, nine hundred six thousand, one hundred forty-three".