235401161 has 2 divisors, whose sum is σ = 235401162. Its totient is φ = 235401160.

The previous prime is 235401121. The next prime is 235401163. The reversal of 235401161 is 161104532.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 182925625 + 52475536 = 13525^2 + 7244^2 .

It is a cyclic number.

It is not a de Polignac number, because 235401161 - 2¹⁸ = 235139017 is a prime.

It is a super-3 number, since 3×235401161³ (a number of 26 digits) contains 333 as substring.

Together with 235401163, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (235401163) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 117700580 + 117700581.

It is an arithmetic number, because the mean of its divisors is an integer number (117700581).

Almost surely, 2^235401161 is an apocalyptic number.

It is an amenable number.

235401161 is a deficient number, since it is larger than the sum of its proper divisors (1).

235401161 is an equidigital number, since it uses as much as digits as its factorization.

235401161 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 235401161 is about 15342.7885666198. The cubic root of 235401161 is about 617.4515238926.

Adding to 235401161 its reverse (161104532), we get a palindrome (396505693).

The spelling of 235401161 in words is "two hundred thirty-five million, four hundred one thousand, one hundred sixty-one".