142704805 has 16 divisors (see below), whose sum is σ = 177557184. Its totient is φ = 110024320.

The previous prime is 142704797. The next prime is 142704823. The reversal of 142704805 is 508407241.

It is not a de Polignac number, because 142704805 - 2³ = 142704797 is a prime.

It is a super-3 number, since 3×142704805³ (a number of 25 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12822 + ... + 21208.

It is an arithmetic number, because the mean of its divisors is an integer number (11097324).

Almost surely, 2^142704805 is an apocalyptic number.

It is an amenable number.

142704805 is a deficient number, since it is larger than the sum of its proper divisors (34852379).

142704805 is an equidigital number, since it uses as much as digits as its factorization.

142704805 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8516.

The product of its (nonzero) digits is 8960, while the sum is 31.

The square root of 142704805 is about 11945.9116437382. The cubic root of 142704805 is about 522.5720755558.

The spelling of 142704805 in words is "one hundred forty-two million, seven hundred four thousand, eight hundred five".