289125140 has 24 divisors (see below), whose sum is σ = 607649280. Its totient is φ = 115557408.

The previous prime is 289125139. The next prime is 289125149. The reversal of 289125140 is 41521982.

It is a junction number, because it is equal to n+sod(n) for n = 289125097 and 289125106.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (289125149) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23381 + ... + 33539.

It is an arithmetic number, because the mean of its divisors is an integer number (25318720).

Almost surely, 2^289125140 is an apocalyptic number.

289125140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

289125140 is an abundant number, since it is smaller than the sum of its proper divisors (318524140).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

289125140 is a wasteful number, since it uses less digits than its factorization.

289125140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11591 (or 11589 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 32.

The square root of 289125140 is about 17003.6801898883. The cubic root of 289125140 is about 661.2443161879.

The spelling of 289125140 in words is "two hundred eighty-nine million, one hundred twenty-five thousand, one hundred forty".