1290247959 has 48 divisors (see below), whose sum is σ = 2351099520. Its totient is φ = 618690240.

The previous prime is 1290247949. The next prime is 1290247967. The reversal of 1290247959 is 9597420921.

It is not a de Polignac number, because 1290247959 - 2¹² = 1290243863 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1290247949) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 9669 + ... + 51710.

It is an arithmetic number, because the mean of its divisors is an integer number (48981240).

Almost surely, 2^1290247959 is an apocalyptic number.

1290247959 is a deficient number, since it is larger than the sum of its proper divisors (1060851561).

1290247959 is a wasteful number, since it uses less digits than its factorization.

1290247959 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61420 (or 61413 counting only the distinct ones).

The product of its (nonzero) digits is 408240, while the sum is 48.

The square root of 1290247959 is about 35920.0217009957. The cubic root of 1290247959 is about 1088.6569770470.

The spelling of 1290247959 in words is "one billion, two hundred ninety million, two hundred forty-seven thousand, nine hundred fifty-nine".