223540139 has 2 divisors, whose sum is σ = 223540140. Its totient is φ = 223540138.

The previous prime is 223540129. The next prime is 223540153. The reversal of 223540139 is 931045322.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 223540139 - 2²⁴ = 206762923 is a prime.

It is not a weakly prime, because it can be changed into another prime (223540129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111770069 + 111770070.

It is an arithmetic number, because the mean of its divisors is an integer number (111770070).

Almost surely, 2^223540139 is an apocalyptic number.

223540139 is a deficient number, since it is larger than the sum of its proper divisors (1).

223540139 is an equidigital number, since it uses as much as digits as its factorization.

223540139 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6480, while the sum is 29.

The square root of 223540139 is about 14951.2587764375. The cubic root of 223540139 is about 606.9019117802.

The spelling of 223540139 in words is "two hundred twenty-three million, five hundred forty thousand, one hundred thirty-nine".