289154139 has 16 divisors (see below), whose sum is σ = 408716928. Its totient is φ = 181208192.

The previous prime is 289154123. The next prime is 289154161. The reversal of 289154139 is 931451982.

It is a cyclic number.

It is not a de Polignac number, because 289154139 - 2⁴ = 289154123 is a prime.

It is a super-3 number, since 3×289154139³ (a number of 26 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a self number, because there is not a number n which added to its sum of digits gives 289154139.

It is not an unprimeable number, because it can be changed into a prime (289154119) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 45304 + ... + 51290.

It is an arithmetic number, because the mean of its divisors is an integer number (25544808).

Almost surely, 2^289154139 is an apocalyptic number.

289154139 is a deficient number, since it is larger than the sum of its proper divisors (119562789).

289154139 is a wasteful number, since it uses less digits than its factorization.

289154139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6954.

The product of its digits is 77760, while the sum is 42.

The square root of 289154139 is about 17004.5328956723. The cubic root of 289154139 is about 661.2664228587.

The spelling of 289154139 in words is "two hundred eighty-nine million, one hundred fifty-four thousand, one hundred thirty-nine".