140222144 has 14 divisors (see below), whose sum is σ = 278253444. Its totient is φ = 70111040.

The previous prime is 140222143. The next prime is 140222149. The reversal of 140222144 is 441222041.

It is not an unprimeable number, because it can be changed into a prime (140222141) 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 as a sum of consecutive naturals, namely, 1095422 + ... + 1095549.

It is an arithmetic number, because the mean of its divisors is an integer number (19875246).

Almost surely, 2^140222144 is an apocalyptic number.

It is an amenable number.

140222144 is a deficient number, since it is larger than the sum of its proper divisors (138031300).

140222144 is an equidigital number, since it uses as much as digits as its factorization.

140222144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2190983 (or 2190973 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 20.

The square root of 140222144 is about 11841.5431426820. The cubic root of 140222144 is about 519.5239034837.

Adding to 140222144 its reverse (441222041), we get a palindrome (581444185).

The spelling of 140222144 in words is "one hundred forty million, two hundred twenty-two thousand, one hundred forty-four".