343120635225 has 63 divisors (see below), whose sum is σ = 638059616463. Its totient is φ = 182955497040.

The previous prime is 343120635223. The next prime is 343120635239. The reversal of 343120635225 is 522536021343.

The square root of 343120635225 is 585765.

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

343120635225 is a `hidden beast` number, since 3 + 4 + 3 + 12 + 0 + 635 + 2 + 2 + 5 = 666.

It can be written as a sum of positive squares in only one way, i.e., 123523428681 + 219597206544 = 351459^2 + 468612^2 .

It is not a de Polignac number, because 343120635225 - 2¹ = 343120635223 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 343120635225.

It is not an unprimeable number, because it can be changed into a prime (343120635223) by changing a digit.

It is a polite number, since it can be written in 62 ways as a sum of consecutive naturals, for example, 79076106 + ... + 79080444.

Almost surely, 2^343120635225 is an apocalyptic number.

343120635225 is the 585765-th square number.

343120635225 is the 292883-rd centered octagonal number.

It is an amenable number.

343120635225 is a deficient number, since it is larger than the sum of its proper divisors (294938981238).

343120635225 is an frugal number, since it uses more digits than its factorization.

343120635225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8706 (or 4347 counting only the distinct ones).

The product of its (nonzero) digits is 129600, while the sum is 36.

Multiplying 343120635225 by its sum of digits (36), we get a square (12352342868100 = 3514590²).

Adding to 343120635225 its reverse (522536021343), we get a palindrome (865656656568).

The spelling of 343120635225 in words is "three hundred forty-three billion, one hundred twenty million, six hundred thirty-five thousand, two hundred twenty-five".