229587597409 has 3 divisors (see below), whose sum is σ = 229588076563. Its totient is φ = 229587118256.

The previous prime is 229587597367. The next prime is 229587597427. The reversal of 229587597409 is 904795785922.

The square root of 229587597409 is 479153.

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

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in only one way, i.e., 229034030625 + 553566784 = 478575^2 + 23528^2 .

It is not a de Polignac number, because 229587597409 - 2⁹ = 229587596897 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (229587597439) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 239577 + ... + 718729.

Almost surely, 2^229587597409 is an apocalyptic number.

229587597409 is the 479153-rd square number.

229587597409 is the 239577-th centered octagonal number.

It is an amenable number.

229587597409 is a deficient number, since it is larger than the sum of its proper divisors (479154).

229587597409 is an frugal number, since it uses more digits than its factorization.

229587597409 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 958306 (or 479153 counting only the distinct ones).

The product of its (nonzero) digits is 114307200, while the sum is 67.

The spelling of 229587597409 in words is "two hundred twenty-nine billion, five hundred eighty-seven million, five hundred ninety-seven thousand, four hundred nine".