235534531761 has 9 divisors (see below), whose sum is σ = 340218648939. Its totient is φ = 157022050536.

The previous prime is 235534531759. The next prime is 235534531801. The reversal of 235534531761 is 167135435532.

The square root of 235534531761 is 485319.

It is a perfect power (a square), and thus also a powerful number.

235534531761 is a `hidden beast` number, since 2 + 3 + 5 + 53 + 4 + 531 + 7 + 61 = 666.

It can be written as a sum of positive squares in only one way, i.e., 234551333025 + 983198736 = 484305^2 + 31356^2 .

It is a tau number, because it is divible by the number of its divisors (9).

It is not a de Polignac number, because 235534531761 - 2¹ = 235534531759 is a prime.

It is a super-2 number, since 2×235534531761² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (235534531721) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 1375071 + ... + 1536843.

Almost surely, 2^235534531761 is an apocalyptic number.

235534531761 is the 485319-th square number.

235534531761 is the 242660-th centered octagonal number.

It is an amenable number.

235534531761 is a deficient number, since it is larger than the sum of its proper divisors (104684117178).

235534531761 is an frugal number, since it uses more digits than its factorization.

235534531761 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 323552 (or 161776 counting only the distinct ones).

The product of its digits is 1134000, while the sum is 45.

The spelling of 235534531761 in words is "two hundred thirty-five billion, five hundred thirty-four million, five hundred thirty-one thousand, seven hundred sixty-one".