142046681 has 8 divisors (see below), whose sum is σ = 167576064. Its totient is φ = 117826560.

The previous prime is 142046659. The next prime is 142046687. The reversal of 142046681 is 186640241.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-142046681 is a prime.

It is a super-2 number, since 2×142046681² = 40354519166231522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (142046687) 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 7 ways as a sum of consecutive naturals, for example, 327080 + ... + 327513.

It is an arithmetic number, because the mean of its divisors is an integer number (20947008).

Almost surely, 2^142046681 is an apocalyptic number.

It is an amenable number.

142046681 is a deficient number, since it is larger than the sum of its proper divisors (25529383).

142046681 is an equidigital number, since it uses as much as digits as its factorization.

142046681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 654631.

The product of its (nonzero) digits is 9216, while the sum is 32.

The square root of 142046681 is about 11918.3338181140. Note that the first 3 decimals coincide. The cubic root of 142046681 is about 521.7675072858.

The spelling of 142046681 in words is "one hundred forty-two million, forty-six thousand, six hundred eighty-one".