140403233 has 2 divisors, whose sum is σ = 140403234. Its totient is φ = 140403232.

The previous prime is 140403169. The next prime is 140403269. The reversal of 140403233 is 332304041.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 102556129 + 37847104 = 10127^2 + 6152^2 .

It is a cyclic number.

It is not a de Polignac number, because 140403233 - 2⁶ = 140403169 is a prime.

It is a super-3 number, since 3×140403233³ (a number of 25 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (140403283) 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 as a sum of consecutive naturals, namely, 70201616 + 70201617.

It is an arithmetic number, because the mean of its divisors is an integer number (70201617).

Almost surely, 2^140403233 is an apocalyptic number.

It is an amenable number.

140403233 is a deficient number, since it is larger than the sum of its proper divisors (1).

140403233 is an equidigital number, since it uses as much as digits as its factorization.

140403233 is an odious number, because the sum of its binary digits is odd.

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

The square root of 140403233 is about 11849.1870185258. The cubic root of 140403233 is about 519.7474525628.

Adding to 140403233 its reverse (332304041), we get a palindrome (472707274).

The spelling of 140403233 in words is "one hundred forty million, four hundred three thousand, two hundred thirty-three".