289310125 has 16 divisors (see below), whose sum is σ = 388834992. Its totient is φ = 213643200.

The previous prime is 289310107. The next prime is 289310143. The reversal of 289310125 is 521013982.

It is an interprime number because it is at equal distance from previous prime (289310107) and next prime (289310143).

It can be written as a sum of positive squares in 8 ways, for example, as 141395881 + 147914244 = 11891^2 + 12162^2 .

It is not a de Polignac number, because 289310125 - 2⁷ = 289309997 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 87394 + ... + 90643.

It is an arithmetic number, because the mean of its divisors is an integer number (24302187).

Almost surely, 2^289310125 is an apocalyptic number.

289310125 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

289310125 is a deficient number, since it is larger than the sum of its proper divisors (99524867).

289310125 is a wasteful number, since it uses less digits than its factorization.

289310125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 178065 (or 178055 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 31.

The square root of 289310125 is about 17009.1188778255. The cubic root of 289310125 is about 661.3853095790.

The spelling of 289310125 in words is "two hundred eighty-nine million, three hundred ten thousand, one hundred twenty-five".