235561013 has 2 divisors, whose sum is σ = 235561014. Its totient is φ = 235561012.

The previous prime is 235560979. The next prime is 235561021. The reversal of 235561013 is 310165532.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 134397649 + 101163364 = 11593^2 + 10058^2 .

It is a cyclic number.

It is not a de Polignac number, because 235561013 - 2¹⁴ = 235544629 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (235531013) 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, 117780506 + 117780507.

It is an arithmetic number, because the mean of its divisors is an integer number (117780507).

Almost surely, 2^235561013 is an apocalyptic number.

It is an amenable number.

235561013 is a deficient number, since it is larger than the sum of its proper divisors (1).

235561013 is an equidigital number, since it uses as much as digits as its factorization.

235561013 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2700, while the sum is 26.

The square root of 235561013 is about 15347.9970354441. The cubic root of 235561013 is about 617.5912549057.

The spelling of 235561013 in words is "two hundred thirty-five million, five hundred sixty-one thousand, thirteen".