289125045 has 56 divisors (see below), whose sum is σ = 567555552. Its totient is φ = 140162400.

The previous prime is 289125043. The next prime is 289125061. The reversal of 289125045 is 540521982.

It is not a de Polignac number, because 289125045 - 2¹ = 289125043 is a prime.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (289125043) by changing a digit.

It is a polite number, since it can be written in 55 ways as a sum of consecutive naturals, for example, 36490 + ... + 43700.

Almost surely, 2^289125045 is an apocalyptic number.

It is an amenable number.

289125045 is a deficient number, since it is larger than the sum of its proper divisors (278430507).

289125045 is an equidigital number, since it uses as much as digits as its factorization.

289125045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7245 (or 7230 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 36.

The square root of 289125045 is about 17003.6773963752. The cubic root of 289125045 is about 661.2442437645.

The spelling of 289125045 in words is "two hundred eighty-nine million, one hundred twenty-five thousand, forty-five".