289400133 has 16 divisors (see below), whose sum is σ = 428083200. Its totient is φ = 172420080.

The previous prime is 289400093. The next prime is 289400149. The reversal of 289400133 is 331004982.

It is not a de Polignac number, because 289400133 - 2²² = 285205829 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 289400133.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (289400173) 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, 72373 + ... + 76266.

It is an arithmetic number, because the mean of its divisors is an integer number (26755200).

Almost surely, 2^289400133 is an apocalyptic number.

It is an amenable number.

289400133 is a deficient number, since it is larger than the sum of its proper divisors (138683067).

289400133 is a wasteful number, since it uses less digits than its factorization.

289400133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148712.

The product of its (nonzero) digits is 5184, while the sum is 30.

The square root of 289400133 is about 17011.7645469246. The cubic root of 289400133 is about 661.4538908826.

The spelling of 289400133 in words is "two hundred eighty-nine million, four hundred thousand, one hundred thirty-three".