289194137 has 2 divisors, whose sum is σ = 289194138. Its totient is φ = 289194136.

The previous prime is 289194121. The next prime is 289194167. The reversal of 289194137 is 731491982.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 288456256 + 737881 = 16984^2 + 859^2 .

It is a cyclic number.

It is not a de Polignac number, because 289194137 - 2⁴ = 289194121 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (289194167) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 144597068 + 144597069.

It is an arithmetic number, because the mean of its divisors is an integer number (144597069).

Almost surely, 2^289194137 is an apocalyptic number.

It is an amenable number.

289194137 is a deficient number, since it is larger than the sum of its proper divisors (1).

289194137 is an equidigital number, since it uses as much as digits as its factorization.

289194137 is an evil number, because the sum of its binary digits is even.

The product of its digits is 108864, while the sum is 44.

The square root of 289194137 is about 17005.7089531722. The cubic root of 289194137 is about 661.2969119201.

The spelling of 289194137 in words is "two hundred eighty-nine million, one hundred ninety-four thousand, one hundred thirty-seven".