289136956 has 12 divisors (see below), whose sum is σ = 527989392. Its totient is φ = 138282848.

The previous prime is 289136951. The next prime is 289136957. The reversal of 289136956 is 659631982.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (289136951) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1571305 + ... + 1571488.

It is an arithmetic number, because the mean of its divisors is an integer number (43999116).

Almost surely, 2^289136956 is an apocalyptic number.

It is an amenable number.

289136956 is a deficient number, since it is larger than the sum of its proper divisors (238852436).

289136956 is a wasteful number, since it uses less digits than its factorization.

289136956 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3142820 (or 3142818 counting only the distinct ones).

The product of its digits is 699840, while the sum is 49.

The square root of 289136956 is about 17004.0276405327. The cubic root of 289136956 is about 661.2533240018.

It can be divided in two parts, 289136 and 956, that added together give a palindrome (290092).

The spelling of 289136956 in words is "two hundred eighty-nine million, one hundred thirty-six thousand, nine hundred fifty-six".