289374121 has 3 divisors (see below), whose sum is σ = 289391133. Its totient is φ = 289357110.

The previous prime is 289374101. The next prime is 289374131. The reversal of 289374121 is 121473982.

The square root of 289374121 is 17011.

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 is not a de Polignac number, because 289374121 - 2⁵ = 289374089 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (289374101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 8506 + ... + 25516.

It is an arithmetic number, because the mean of its divisors is an integer number (96463711).

Almost surely, 2^289374121 is an apocalyptic number.

289374121 is the 17011-st square number.

289374121 is the 8506-th centered octagonal number.

It is an amenable number.

289374121 is a deficient number, since it is larger than the sum of its proper divisors (17012).

289374121 is an frugal number, since it uses more digits than its factorization.

289374121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34022 (or 17011 counting only the distinct ones).

The product of its digits is 24192, while the sum is 37.

The cubic root of 289374121 is about 661.4340725847.

The spelling of 289374121 in words is "two hundred eighty-nine million, three hundred seventy-four thousand, one hundred twenty-one".