1289422514 has 16 divisors (see below), whose sum is σ = 1974468120. Its totient is φ = 631359360.

The previous prime is 1289422469. The next prime is 1289422523. The reversal of 1289422514 is 4152249821.

It can be written as a sum of positive squares in 4 ways, for example, as 1251390625 + 38031889 = 35375^2 + 6167^2 .

It is a super-2 number, since 2×1289422514² = 3325220839220160392, which contains 22 as substring.

It is a Curzon number.

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, 4862 + ... + 51014.

Almost surely, 2^1289422514 is an apocalyptic number.

1289422514 is a deficient number, since it is larger than the sum of its proper divisors (685045606).

1289422514 is a wasteful number, since it uses less digits than its factorization.

1289422514 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46445.

The product of its digits is 46080, while the sum is 38.

The square root of 1289422514 is about 35908.5298223138. The cubic root of 1289422514 is about 1088.4247689265.

The spelling of 1289422514 in words is "one billion, two hundred eighty-nine million, four hundred twenty-two thousand, five hundred fourteen".