140422681 has 12 divisors (see below), whose sum is σ = 164940672. Its totient is φ = 119189448.

The previous prime is 140422679. The next prime is 140422691. The reversal of 140422681 is 186224041.

140422681 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 140422681 - 2¹ = 140422679 is a prime.

It is a super-2 number, since 2×140422681² = 39437058678455522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (140422621) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8865 + ... + 18958.

It is an arithmetic number, because the mean of its divisors is an integer number (13745056).

Almost surely, 2^140422681 is an apocalyptic number.

It is an amenable number.

140422681 is a deficient number, since it is larger than the sum of its proper divisors (24517991).

140422681 is a wasteful number, since it uses less digits than its factorization.

140422681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27940 (or 27933 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 28.

The square root of 140422681 is about 11850.0076371283. The cubic root of 140422681 is about 519.7714491180.

The spelling of 140422681 in words is "one hundred forty million, four hundred twenty-two thousand, six hundred eighty-one".