804012142 has 4 divisors (see below), whose sum is σ = 1206018216. Its totient is φ = 402006070.

The previous prime is 804012133. The next prime is 804012149. The reversal of 804012142 is 241210408.

It is a semiprime because it is the product of two primes.

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 not an unprimeable number, because it can be changed into a prime (804012149) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 201003034 + ... + 201003037.

It is an arithmetic number, because the mean of its divisors is an integer number (301504554).

Almost surely, 2^804012142 is an apocalyptic number.

804012142 is a deficient number, since it is larger than the sum of its proper divisors (402006074).

804012142 is a wasteful number, since it uses less digits than its factorization.

804012142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 402006073.

The product of its (nonzero) digits is 512, while the sum is 22.

The square root of 804012142 is about 28355.1078643690. The cubic root of 804012142 is about 929.8670723798.

The spelling of 804012142 in words is "eight hundred four million, twelve thousand, one hundred forty-two".