289020122 has 8 divisors (see below), whose sum is σ = 433987956. Its totient is φ = 144357472.

The previous prime is 289020107. The next prime is 289020187. The reversal of 289020122 is 221020982.

It can be written as a sum of positive squares in 2 ways, for example, as 288694081 + 326041 = 16991^2 + 571^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 289020091 and 289020100.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 73913 + ... + 77724.

Almost surely, 2^289020122 is an apocalyptic number.

289020122 is a deficient number, since it is larger than the sum of its proper divisors (144967834).

289020122 is a wasteful number, since it uses less digits than its factorization.

289020122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 152592.

The product of its (nonzero) digits is 1152, while the sum is 26.

The square root of 289020122 is about 17000.5918132282. The cubic root of 289020122 is about 661.1642459397.

The spelling of 289020122 in words is "two hundred eighty-nine million, twenty thousand, one hundred twenty-two".