201332142 has 60 divisors (see below), whose sum is σ = 495921888. Its totient is φ = 61003800.

The previous prime is 201332141. The next prime is 201332171. The reversal of 201332142 is 241233102.

It is a hoax number, since the sum of its digits (18) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201332141) by changing a digit.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 14467 + ... + 24737.

Almost surely, 2^201332142 is an apocalyptic number.

201332142 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 201332142, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (247960944).

201332142 is an abundant number, since it is smaller than the sum of its proper divisors (294589746).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

201332142 is a wasteful number, since it uses less digits than its factorization.

201332142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10307 (or 10287 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 201332142 is about 14189.1557888410. The cubic root of 201332142 is about 586.0990777817.

Adding to 201332142 its reverse (241233102), we get a palindrome (442565244).

The spelling of 201332142 in words is "two hundred one million, three hundred thirty-two thousand, one hundred forty-two".