235640060261 has 2 divisors, whose sum is σ = 235640060262. Its totient is φ = 235640060260.

The previous prime is 235640060237. The next prime is 235640060281. The reversal of 235640060261 is 162060046532.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 232329784036 + 3310276225 = 482006^2 + 57535^2 .

It is a cyclic number.

It is not a de Polignac number, because 235640060261 - 2⁶ = 235640060197 is a prime.

It is a super-2 number, since 2×235640060261² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (235640060281) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 117820030130 + 117820030131.

It is an arithmetic number, because the mean of its divisors is an integer number (117820030131).

Almost surely, 2^235640060261 is an apocalyptic number.

It is an amenable number.

235640060261 is a deficient number, since it is larger than the sum of its proper divisors (1).

235640060261 is an equidigital number, since it uses as much as digits as its factorization.

235640060261 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 51840, while the sum is 35.

The spelling of 235640060261 in words is "two hundred thirty-five billion, six hundred forty million, sixty thousand, two hundred sixty-one".