289148345 has 8 divisors (see below), whose sum is σ = 351158976. Its totient is φ = 228531376.

The previous prime is 289148329. The next prime is 289148351. The reversal of 289148345 is 543841982.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 289148345 - 2⁴ = 289148329 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 289148296 and 289148305.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 347957 + ... + 348786.

It is an arithmetic number, because the mean of its divisors is an integer number (43894872).

Almost surely, 2^289148345 is an apocalyptic number.

It is an amenable number.

289148345 is a deficient number, since it is larger than the sum of its proper divisors (62010631).

289148345 is an equidigital number, since it uses as much as digits as its factorization.

289148345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 696831.

The product of its digits is 276480, while the sum is 44.

The square root of 289148345 is about 17004.3625284807. The cubic root of 289148345 is about 661.2620060641.

The spelling of 289148345 in words is "two hundred eighty-nine million, one hundred forty-eight thousand, three hundred forty-five".