235130919409 has 9 divisors (see below), whose sum is σ = 237627474507. Its totient is φ = 232660338624.

The previous prime is 235130919407. The next prime is 235130919481. The reversal of 235130919409 is 904919031532.

The square root of 235130919409 is 484903.

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

It can be written as a sum of positive squares in only one way, i.e., 105582754225 + 129548165184 = 324935^2 + 359928^2 .

It is not a de Polignac number, because 235130919409 - 2¹ = 235130919407 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (235130919407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 47033092 + ... + 47038090.

It is an arithmetic number, because the mean of its divisors is an integer number (26403052723).

Almost surely, 2^235130919409 is an apocalyptic number.

235130919409 is the 484903-rd square number.

235130919409 is the 242452-nd centered octagonal number.

It is an amenable number.

235130919409 is a deficient number, since it is larger than the sum of its proper divisors (2496555098).

235130919409 is an frugal number, since it uses more digits than its factorization.

235130919409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10192 (or 5096 counting only the distinct ones).

The product of its (nonzero) digits is 262440, while the sum is 46.

It can be divided in two parts, 23513091 and 9409, that added together give a square (23522500 = 4850²).

The spelling of 235130919409 in words is "two hundred thirty-five billion, one hundred thirty million, nine hundred nineteen thousand, four hundred nine".