140444233 has 4 divisors (see below), whose sum is σ = 146550528. Its totient is φ = 134337940.

The previous prime is 140444221. The next prime is 140444243. The reversal of 140444233 is 332444041.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 332444041 = 10427 ⋅31883.

It is not a de Polignac number, because 140444233 - 2⁵ = 140444201 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 140444198 and 140444207.

It is not an unprimeable number, because it can be changed into a prime (140444203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3053113 + ... + 3053158.

It is an arithmetic number, because the mean of its divisors is an integer number (36637632).

Almost surely, 2^140444233 is an apocalyptic number.

It is an amenable number.

140444233 is a deficient number, since it is larger than the sum of its proper divisors (6106295).

140444233 is an equidigital number, since it uses as much as digits as its factorization.

140444233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6106294.

The product of its (nonzero) digits is 4608, while the sum is 25.

The square root of 140444233 is about 11850.9169687413. The cubic root of 140444233 is about 519.7980391749.

Adding to 140444233 its reverse (332444041), we get a palindrome (472888274).

The spelling of 140444233 in words is "one hundred forty million, four hundred forty-four thousand, two hundred thirty-three".