235525139 has 2 divisors, whose sum is σ = 235525140. Its totient is φ = 235525138.

The previous prime is 235525127. The next prime is 235525189. The reversal of 235525139 is 931525532.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-235525139 is a prime.

It is a super-2 number, since 2×235525139² = 110944182201938642, which contains 22 as substring.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 235525099 and 235525108.

It is not a weakly prime, because it can be changed into another prime (235525189) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 117762569 + 117762570.

It is an arithmetic number, because the mean of its divisors is an integer number (117762570).

Almost surely, 2^235525139 is an apocalyptic number.

235525139 is a deficient number, since it is larger than the sum of its proper divisors (1).

235525139 is an equidigital number, since it uses as much as digits as its factorization.

235525139 is an evil number, because the sum of its binary digits is even.

The product of its digits is 40500, while the sum is 35.

The square root of 235525139 is about 15346.8283042458. The cubic root of 235525139 is about 617.5599019621.

The spelling of 235525139 in words is "two hundred thirty-five million, five hundred twenty-five thousand, one hundred thirty-nine".