140224643 has 8 divisors (see below), whose sum is σ = 151343808. Its totient is φ = 129153024.

The previous prime is 140224639. The next prime is 140224649. The reversal of 140224643 is 346422041.

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

It is not a de Polignac number, because 140224643 - 2² = 140224639 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (140224649) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5630 + ... + 17667.

It is an arithmetic number, because the mean of its divisors is an integer number (18917976).

Almost surely, 2^140224643 is an apocalyptic number.

140224643 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

140224643 is a deficient number, since it is larger than the sum of its proper divisors (11119165).

140224643 is a wasteful number, since it uses less digits than its factorization.

140224643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23773.

The product of its (nonzero) digits is 4608, while the sum is 26.

The square root of 140224643 is about 11841.6486605540. The cubic root of 140224643 is about 519.5269897355.

Adding to 140224643 its reverse (346422041), we get a palindrome (486646684).

The spelling of 140224643 in words is "one hundred forty million, two hundred twenty-four thousand, six hundred forty-three".