140216833 has 4 divisors (see below), whose sum is σ = 148464900. Its totient is φ = 131968768.

The previous prime is 140216831. The next prime is 140216861. The reversal of 140216833 is 338612041.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 338612041 = 227 ⋅1491683.

It can be written as a sum of positive squares in 2 ways, for example, as 61575409 + 78641424 = 7847^2 + 8868^2 .

It is a cyclic number.

It is not a de Polignac number, because 140216833 - 2¹ = 140216831 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (140216831) 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, 4124008 + ... + 4124041.

It is an arithmetic number, because the mean of its divisors is an integer number (37116225).

Almost surely, 2^140216833 is an apocalyptic number.

It is an amenable number.

140216833 is a deficient number, since it is larger than the sum of its proper divisors (8248067).

140216833 is an equidigital number, since it uses as much as digits as its factorization.

140216833 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8248066.

The product of its (nonzero) digits is 3456, while the sum is 28.

The square root of 140216833 is about 11841.3188876915. The cubic root of 140216833 is about 519.5173443051.

Adding to 140216833 its reverse (338612041), we get a palindrome (478828874).

The spelling of 140216833 in words is "one hundred forty million, two hundred sixteen thousand, eight hundred thirty-three".