140224447 has 8 divisors (see below), whose sum is σ = 154909440. Its totient is φ = 125862360.

The previous prime is 140224397. The next prime is 140224457. The reversal of 140224447 is 744422041.

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

It is a cyclic number.

It is not a de Polignac number, because 140224447 - 2⁷ = 140224319 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140224457) 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, 79813 + ... + 81550.

It is an arithmetic number, because the mean of its divisors is an integer number (19363680).

Almost surely, 2^140224447 is an apocalyptic number.

140224447 is a deficient number, since it is larger than the sum of its proper divisors (14684993).

140224447 is a wasteful number, since it uses less digits than its factorization.

140224447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 161453.

The product of its (nonzero) digits is 7168, while the sum is 28.

The square root of 140224447 is about 11841.6403846764. The cubic root of 140224447 is about 519.5267476779.

Adding to 140224447 its reverse (744422041), we get a palindrome (884646488).

The spelling of 140224447 in words is "one hundred forty million, two hundred twenty-four thousand, four hundred forty-seven".