202124142 has 48 divisors (see below), whose sum is σ = 494236080. Its totient is φ = 59136000.

The previous prime is 202124099. The next prime is 202124191. The reversal of 202124142 is 241421202.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11859 + ... + 23342.

It is an arithmetic number, because the mean of its divisors is an integer number (10296585).

Almost surely, 2^202124142 is an apocalyptic number.

202124142 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

202124142 is an abundant number, since it is smaller than the sum of its proper divisors (292111938).

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

202124142 is a wasteful number, since it uses less digits than its factorization.

202124142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35249 (or 35246 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

The square root of 202124142 is about 14217.0370330811. The cubic root of 202124142 is about 586.8666040438.

Adding to 202124142 its reverse (241421202), we get a palindrome (443545344).

The spelling of 202124142 in words is "two hundred two million, one hundred twenty-four thousand, one hundred forty-two".