210201142 has 16 divisors (see below), whose sum is σ = 342604800. Its totient is φ = 96356520.

The previous prime is 210201139. The next prime is 210201143. The reversal of 210201142 is 241102012.

It is a happy number.

210201142 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210201143) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 88042 + ... + 90397.

It is an arithmetic number, because the mean of its divisors is an integer number (21412800).

Almost surely, 2^210201142 is an apocalyptic number.

210201142 is a deficient number, since it is larger than the sum of its proper divisors (132403658).

210201142 is a wasteful number, since it uses less digits than its factorization.

210201142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 178491.

The product of its (nonzero) digits is 32, while the sum is 13.

The square root of 210201142 is about 14498.3151434917. The cubic root of 210201142 is about 594.5819081078.

Adding to 210201142 its reverse (241102012), we get a palindrome (451303154).

The spelling of 210201142 in words is "two hundred ten million, two hundred one thousand, one hundred forty-two".