201420143 has 4 divisors (see below), whose sum is σ = 201466128. Its totient is φ = 201374160.

The previous prime is 201420103. The next prime is 201420179. The reversal of 201420143 is 341024102.

201420143 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 341024102 = 2 ⋅170512051.

It is a cyclic number.

It is not a de Polignac number, because 201420143 - 2⁸ = 201419887 is a prime.

It is a super-2 number, since 2×201420143² = 81140148012280898, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201420103) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15638 + ... + 25443.

It is an arithmetic number, because the mean of its divisors is an integer number (50366532).

Almost surely, 2^201420143 is an apocalyptic number.

201420143 is a deficient number, since it is larger than the sum of its proper divisors (45985).

201420143 is an equidigital number, since it uses as much as digits as its factorization.

201420143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45984.

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 201420143 is about 14192.2564449773. The cubic root of 201420143 is about 586.1844587374.

Adding to 201420143 its reverse (341024102), we get a palindrome (542444245).

The spelling of 201420143 in words is "two hundred one million, four hundred twenty thousand, one hundred forty-three".