201142424 has 32 divisors (see below), whose sum is σ = 432238080. Its totient is φ = 85960224.

The previous prime is 201142421. The next prime is 201142427. The reversal of 201142424 is 424241102.

It is an interprime number because it is at equal distance from previous prime (201142421) and next prime (201142427).

It is a junction number, because it is equal to n+sod(n) for n = 201142396 and 201142405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201142421) 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, 15659 + ... + 25445.

It is an arithmetic number, because the mean of its divisors is an integer number (13507440).

Almost surely, 2^201142424 is an apocalyptic number.

It is an amenable number.

201142424 is an abundant number, since it is smaller than the sum of its proper divisors (231095656).

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

201142424 is a wasteful number, since it uses less digits than its factorization.

201142424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10167 (or 10163 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 20.

The square root of 201142424 is about 14182.4688964933. The cubic root of 201142424 is about 585.9149235637.

Adding to 201142424 its reverse (424241102), we get a palindrome (625383526).

The spelling of 201142424 in words is "two hundred one million, one hundred forty-two thousand, four hundred twenty-four".