289228501 has 2 divisors, whose sum is σ = 289228502. Its totient is φ = 289228500.

The previous prime is 289228483. The next prime is 289228517. The reversal of 289228501 is 105822982.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 286489476 + 2739025 = 16926^2 + 1655^2 .

It is a cyclic number.

It is not a de Polignac number, because 289228501 - 2²⁷ = 155010773 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (289228591) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 144614250 + 144614251.

It is an arithmetic number, because the mean of its divisors is an integer number (144614251).

Almost surely, 2^289228501 is an apocalyptic number.

It is an amenable number.

289228501 is a deficient number, since it is larger than the sum of its proper divisors (1).

289228501 is an equidigital number, since it uses as much as digits as its factorization.

289228501 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 23040, while the sum is 37.

The square root of 289228501 is about 17006.7192897396. The cubic root of 289228501 is about 661.3231041374.

The spelling of 289228501 in words is "two hundred eighty-nine million, two hundred twenty-eight thousand, five hundred one".