204162142 has 4 divisors (see below), whose sum is σ = 306243216. Its totient is φ = 102081070.

The previous prime is 204162137. The next prime is 204162157. The reversal of 204162142 is 241261402.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 241261402 = 2 ⋅120630701.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

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 as a sum of consecutive naturals, namely, 51040534 + ... + 51040537.

It is an arithmetic number, because the mean of its divisors is an integer number (76560804).

Almost surely, 2^204162142 is an apocalyptic number.

204162142 is a deficient number, since it is larger than the sum of its proper divisors (102081074).

204162142 is a wasteful number, since it uses less digits than its factorization.

204162142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102081073.

The product of its (nonzero) digits is 768, while the sum is 22.

The square root of 204162142 is about 14288.5318350067. The cubic root of 204162142 is about 588.8324531152.

It can be divided in two parts, 204162 and 142, that added together give a square (204304 = 452²).

The spelling of 204162142 in words is "two hundred four million, one hundred sixty-two thousand, one hundred forty-two".