289138003 has 16 divisors (see below), whose sum is σ = 361154304. Its totient is φ = 224883360.

The previous prime is 289137997. The next prime is 289138007. The reversal of 289138003 is 300831982.

It is a cyclic number.

It is not a de Polignac number, because 289138003 - 2¹³ = 289129811 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 289138003.

It is not an unprimeable number, because it can be changed into a prime (289138007) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 42001 + ... + 48397.

It is an arithmetic number, because the mean of its divisors is an integer number (22572144).

Almost surely, 2^289138003 is an apocalyptic number.

289138003 is a deficient number, since it is larger than the sum of its proper divisors (72016301).

289138003 is a wasteful number, since it uses less digits than its factorization.

289138003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7002.

The product of its (nonzero) digits is 10368, while the sum is 34.

The square root of 289138003 is about 17004.0584273285. The cubic root of 289138003 is about 661.2541221604.

Adding to 289138003 its reverse (300831982), we get a palindrome (589969985).

The spelling of 289138003 in words is "two hundred eighty-nine million, one hundred thirty-eight thousand, three".