140556233 has 2 divisors, whose sum is σ = 140556234. Its totient is φ = 140556232.

The previous prime is 140556223. The next prime is 140556239. The reversal of 140556233 is 332655041.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 136702864 + 3853369 = 11692^2 + 1963^2 .

It is an emirp because it is prime and its reverse (332655041) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 140556233 - 2⁴ = 140556217 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 140556196 and 140556205.

It is not a weakly prime, because it can be changed into another prime (140556239) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70278116 + 70278117.

It is an arithmetic number, because the mean of its divisors is an integer number (70278117).

Almost surely, 2^140556233 is an apocalyptic number.

It is an amenable number.

140556233 is a deficient number, since it is larger than the sum of its proper divisors (1).

140556233 is an equidigital number, since it uses as much as digits as its factorization.

140556233 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10800, while the sum is 29.

The square root of 140556233 is about 11855.6413997725. The cubic root of 140556233 is about 519.9361768316.

The spelling of 140556233 in words is "one hundred forty million, five hundred fifty-six thousand, two hundred thirty-three".