140402233 has 2 divisors, whose sum is σ = 140402234. Its totient is φ = 140402232.

The previous prime is 140402231. The next prime is 140402239. The reversal of 140402233 is 332204041.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 116704809 + 23697424 = 10803^2 + 4868^2 .

It is a cyclic number.

It is not a de Polignac number, because 140402233 - 2¹ = 140402231 is a prime.

Together with 140402231, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 140402233.

It is not a weakly prime, because it can be changed into another prime (140402231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70201116 + 70201117.

It is an arithmetic number, because the mean of its divisors is an integer number (70201117).

Almost surely, 2^140402233 is an apocalyptic number.

It is an amenable number.

140402233 is a deficient number, since it is larger than the sum of its proper divisors (1).

140402233 is an equidigital number, since it uses as much as digits as its factorization.

140402233 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 140402233 is about 11849.1448214629. The cubic root of 140402233 is about 519.7462186200.

Adding to 140402233 its reverse (332204041), we get a palindrome (472606274).

The spelling of 140402233 in words is "one hundred forty million, four hundred two thousand, two hundred thirty-three".