140144223442 has 32 divisors (see below), whose sum is σ = 214866432000. Its totient is φ = 68538859200.

The previous prime is 140144223413. The next prime is 140144223463. The reversal of 140144223442 is 244322441041.

It is a happy number.

It is a super-2 number, since 2×140144223442² (a number of 23 digits) contains 22 as substring.

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, 19906159 + ... + 19913197.

It is an arithmetic number, because the mean of its divisors is an integer number (6714576000).

Almost surely, 2^140144223442 is an apocalyptic number.

140144223442 is a deficient number, since it is larger than the sum of its proper divisors (74722208558).

140144223442 is a wasteful number, since it uses less digits than its factorization.

140144223442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8202.

The product of its (nonzero) digits is 24576, while the sum is 31.

Adding to 140144223442 its reverse (244322441041), we get a palindrome (384466664483).

The spelling of 140144223442 in words is "one hundred forty billion, one hundred forty-four million, two hundred twenty-three thousand, four hundred forty-two".