1420875289 has 2 divisors, whose sum is σ = 1420875290. Its totient is φ = 1420875288.

The previous prime is 1420875259. The next prime is 1420875319. The reversal of 1420875289 is 9825780241.

It is a balanced prime because it is at equal distance from previous prime (1420875259) and next prime (1420875319).

It can be written as a sum of positive squares in only one way, i.e., 1389425625 + 31449664 = 37275^2 + 5608^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1420875289 is a prime.

It is not a weakly prime, because it can be changed into another prime (1420875259) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 710437644 + 710437645.

It is an arithmetic number, because the mean of its divisors is an integer number (710437645).

Almost surely, 2^1420875289 is an apocalyptic number.

It is an amenable number.

1420875289 is a deficient number, since it is larger than the sum of its proper divisors (1).

1420875289 is an equidigital number, since it uses as much as digits as its factorization.

1420875289 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 322560, while the sum is 46.

The square root of 1420875289 is about 37694.4994528379. The cubic root of 1420875289 is about 1124.2217600995.

The spelling of 1420875289 in words is "one billion, four hundred twenty million, eight hundred seventy-five thousand, two hundred eighty-nine".