235606139 has 2 divisors, whose sum is σ = 235606140. Its totient is φ = 235606138.

The previous prime is 235606127. The next prime is 235606157. The reversal of 235606139 is 931606532.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 235606139 - 2⁴ = 235606123 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 235606099 and 235606108.

It is not a weakly prime, because it can be changed into another prime (235606109) 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, 117803069 + 117803070.

It is an arithmetic number, because the mean of its divisors is an integer number (117803070).

Almost surely, 2^235606139 is an apocalyptic number.

235606139 is a deficient number, since it is larger than the sum of its proper divisors (1).

235606139 is an equidigital number, since it uses as much as digits as its factorization.

235606139 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 29160, while the sum is 35.

The square root of 235606139 is about 15349.4670591522. The cubic root of 235606139 is about 617.6306893366.

The spelling of 235606139 in words is "two hundred thirty-five million, six hundred six thousand, one hundred thirty-nine".