235979113 has 2 divisors, whose sum is σ = 235979114. Its totient is φ = 235979112.

The previous prime is 235979087. The next prime is 235979131. The reversal of 235979113 is 311979532.

Together with next prime (235979131) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 204976489 + 31002624 = 14317^2 + 5568^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-235979113 is a prime.

It is a super-2 number, since 2×235979113² = 111372283544533538, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (235979213) 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, 117989556 + 117989557.

It is an arithmetic number, because the mean of its divisors is an integer number (117989557).

Almost surely, 2^235979113 is an apocalyptic number.

It is an amenable number.

235979113 is a deficient number, since it is larger than the sum of its proper divisors (1).

235979113 is an equidigital number, since it uses as much as digits as its factorization.

235979113 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 51030, while the sum is 40.

The square root of 235979113 is about 15361.6116667490. The cubic root of 235979113 is about 617.9564289234.

The spelling of 235979113 in words is "two hundred thirty-five million, nine hundred seventy-nine thousand, one hundred thirteen".