235213091 has 2 divisors, whose sum is σ = 235213092. Its totient is φ = 235213090.

The previous prime is 235213079. The next prime is 235213109. The reversal of 235213091 is 190312532.

Together with next prime (235213109) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 235213091 - 2¹⁰ = 235212067 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 235213091.

It is not a weakly prime, because it can be changed into another prime (235213001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 117606545 + 117606546.

It is an arithmetic number, because the mean of its divisors is an integer number (117606546).

Almost surely, 2^235213091 is an apocalyptic number.

235213091 is a deficient number, since it is larger than the sum of its proper divisors (1).

235213091 is an equidigital number, since it uses as much as digits as its factorization.

235213091 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1620, while the sum is 26.

The square root of 235213091 is about 15336.6584039679. The cubic root of 235213091 is about 617.2870457361.

The spelling of 235213091 in words is "two hundred thirty-five million, two hundred thirteen thousand, ninety-one".