1290630963 has 4 divisors (see below), whose sum is σ = 1720841288. Its totient is φ = 860420640.

The previous prime is 1290630937. The next prime is 1290630977. The reversal of 1290630963 is 3690360921.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 1290630963 - 2⁶ = 1290630899 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1290637963) 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 3 ways as a sum of consecutive naturals, for example, 215105158 + ... + 215105163.

It is an arithmetic number, because the mean of its divisors is an integer number (430210322).

Almost surely, 2^1290630963 is an apocalyptic number.

1290630963 is a deficient number, since it is larger than the sum of its proper divisors (430210325).

1290630963 is an equidigital number, since it uses as much as digits as its factorization.

1290630963 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 430210324.

The product of its (nonzero) digits is 52488, while the sum is 39.

The square root of 1290630963 is about 35925.3526496261. The cubic root of 1290630963 is about 1088.7646872803.

The spelling of 1290630963 in words is "one billion, two hundred ninety million, six hundred thirty thousand, nine hundred sixty-three".