204100142 has 4 divisors (see below), whose sum is σ = 306150216. Its totient is φ = 102050070.

The previous prime is 204100139. The next prime is 204100159. The reversal of 204100142 is 241001402.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 241001402 = 2 ⋅120500701.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51025034 + ... + 51025037.

It is an arithmetic number, because the mean of its divisors is an integer number (76537554).

Almost surely, 2^204100142 is an apocalyptic number.

204100142 is a deficient number, since it is larger than the sum of its proper divisors (102050074).

204100142 is a wasteful number, since it uses less digits than its factorization.

204100142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102050073.

The product of its (nonzero) digits is 64, while the sum is 14.

The square root of 204100142 is about 14286.3620981690. The cubic root of 204100142 is about 588.7728414949.

Adding to 204100142 its reverse (241001402), we get a palindrome (445101544).

The spelling of 204100142 in words is "two hundred four million, one hundred thousand, one hundred forty-two".