289900139 has 4 divisors (see below), whose sum is σ = 289987224. Its totient is φ = 289813056.

The previous prime is 289900103. The next prime is 289900141. The reversal of 289900139 is 931009982.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 289900139 - 2¹⁶ = 289834603 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 289900096 and 289900105.

It is not an unprimeable number, because it can be changed into a prime (289900339) 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, 38342 + ... + 45275.

It is an arithmetic number, because the mean of its divisors is an integer number (72496806).

Almost surely, 2^289900139 is an apocalyptic number.

289900139 is a deficient number, since it is larger than the sum of its proper divisors (87085).

289900139 is an equidigital number, since it uses as much as digits as its factorization.

289900139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87084.

The product of its (nonzero) digits is 34992, while the sum is 41.

The square root of 289900139 is about 17026.4540935569. The cubic root of 289900139 is about 661.8346101562.

The spelling of 289900139 in words is "two hundred eighty-nine million, nine hundred thousand, one hundred thirty-nine".