9145670689 has 3 divisors (see below), whose sum is σ = 9145766323. Its totient is φ = 9145575056.

The previous prime is 9145670687. The next prime is 9145670741. The reversal of 9145670689 is 9860765419.

The square root of 9145670689 is 95633.

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, and also an emirpimes, since its reverse is a distinct semiprime: 9860765419 = 229 ⋅43060111.

It can be written as a sum of positive squares in only one way, i.e., 1329696225 + 7815974464 = 36465^2 + 88408^2 .

It is not a de Polignac number, because 9145670689 - 2¹ = 9145670687 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9145670683) 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, 47817 + ... + 143449.

Almost surely, 2^9145670689 is an apocalyptic number.

9145670689 is the 95633-rd square number.

9145670689 is the 47817-th centered octagonal number.

It is an amenable number.

9145670689 is a deficient number, since it is larger than the sum of its proper divisors (95634).

9145670689 is an frugal number, since it uses more digits than its factorization.

9145670689 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 191266 (or 95633 counting only the distinct ones).

The product of its (nonzero) digits is 3265920, while the sum is 55.

The cubic root of 9145670689 is about 2091.2463044978.

The spelling of 9145670689 in words is "nine billion, one hundred forty-five million, six hundred seventy thousand, six hundred eighty-nine".