140223242 has 8 divisors (see below), whose sum is σ = 222707556. Its totient is φ = 65987392.

The previous prime is 140223241. The next prime is 140223257. The reversal of 140223242 is 242322041.

It can be written as a sum of positive squares in 2 ways, for example, as 113401201 + 26822041 = 10649^2 + 5179^2 .

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

It is not an unprimeable number, because it can be changed into a prime (140223241) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2062073 + ... + 2062140.

Almost surely, 2^140223242 is an apocalyptic number.

140223242 is a deficient number, since it is larger than the sum of its proper divisors (82484314).

140223242 is a wasteful number, since it uses less digits than its factorization.

140223242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4124232.

The product of its (nonzero) digits is 768, while the sum is 20.

The square root of 140223242 is about 11841.5895047920. The cubic root of 140223242 is about 519.5252595124.

Adding to 140223242 its reverse (242322041), we get a palindrome (382545283).

The spelling of 140223242 in words is "one hundred forty million, two hundred twenty-three thousand, two hundred forty-two".