140222081 has 8 divisors (see below), whose sum is σ = 142187400. Its totient is φ = 138265600.

The previous prime is 140222059. The next prime is 140222107. The reversal of 140222081 is 180222041.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 18318400 + 121903681 = 4280^2 + 11041^2 .

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-140222081 is a prime.

It is a super-2 number, since 2×140222081² = 39324463999941122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (140222281) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33725 + ... + 37653.

It is an arithmetic number, because the mean of its divisors is an integer number (17773425).

Almost surely, 2^140222081 is an apocalyptic number.

It is an amenable number.

140222081 is a deficient number, since it is larger than the sum of its proper divisors (1965319).

140222081 is an equidigital number, since it uses as much as digits as its factorization.

140222081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4419.

The product of its (nonzero) digits is 256, while the sum is 20.

The square root of 140222081 is about 11841.5404825555. The cubic root of 140222081 is about 519.5238256786.

The spelling of 140222081 in words is "one hundred forty million, two hundred twenty-two thousand, eighty-one".