1289414142 has 48 divisors (see below), whose sum is σ = 2839112640. Its totient is φ = 422862336.

The previous prime is 1289414123. The next prime is 1289414171. The reversal of 1289414142 is 2414149821.

It is a junction number, because it is equal to n+sod(n) for n = 1289414097 and 1289414106.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 443638 + ... + 446534.

It is an arithmetic number, because the mean of its divisors is an integer number (59148180).

Almost surely, 2^1289414142 is an apocalyptic number.

1289414142 is an abundant number, since it is smaller than the sum of its proper divisors (1549698498).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1289414142 is a wasteful number, since it uses less digits than its factorization.

1289414142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3297 (or 3294 counting only the distinct ones).

The product of its digits is 18432, while the sum is 36.

The square root of 1289414142 is about 35908.4132481512. The cubic root of 1289414142 is about 1088.4224132694.

The spelling of 1289414142 in words is "one billion, two hundred eighty-nine million, four hundred fourteen thousand, one hundred forty-two".