140304233 has 16 divisors (see below), whose sum is σ = 150681600. Its totient is φ = 130347840.

The previous prime is 140304223. The next prime is 140304253. The reversal of 140304233 is 332403041.

It is a cyclic number.

It is not a de Polignac number, because 140304233 - 2⁶ = 140304169 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (140304223) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 214535 + ... + 215187.

It is an arithmetic number, because the mean of its divisors is an integer number (9417600).

Almost surely, 2^140304233 is an apocalyptic number.

It is an amenable number.

140304233 is a deficient number, since it is larger than the sum of its proper divisors (10377367).

140304233 is a wasteful number, since it uses less digits than its factorization.

140304233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 952.

The product of its (nonzero) digits is 864, while the sum is 20.

The square root of 140304233 is about 11845.0087800727. The cubic root of 140304233 is about 519.6252637896.

Adding to 140304233 its reverse (332403041), we get a palindrome (472707274).

The spelling of 140304233 in words is "one hundred forty million, three hundred four thousand, two hundred thirty-three".