142179804 has 36 divisors (see below), whose sum is σ = 387046296. Its totient is φ = 43747488.

The previous prime is 142179803. The next prime is 142179809. The reversal of 142179804 is 408971241.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142179803) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 151434 + ... + 152369.

It is an arithmetic number, because the mean of its divisors is an integer number (10751286).

Almost surely, 2^142179804 is an apocalyptic number.

It is an amenable number.

142179804 is an abundant number, since it is smaller than the sum of its proper divisors (244866492).

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

142179804 is a wasteful number, since it uses less digits than its factorization.

142179804 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 303826 (or 303821 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 36.

The square root of 142179804 is about 11923.9173093409. The cubic root of 142179804 is about 521.9304527065.

It can be divided in two parts, 1421 and 79804, that added together give a square (81225 = 285²).

The spelling of 142179804 in words is "one hundred forty-two million, one hundred seventy-nine thousand, eight hundred four".