1290948267 has 24 divisors (see below), whose sum is σ = 2003778000. Its totient is φ = 737135616.

The previous prime is 1290948257. The next prime is 1290948271. The reversal of 1290948267 is 7628490921.

It is not a de Polignac number, because 1290948267 - 2¹¹ = 1290946219 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1290948247) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 275359 + ... + 280007.

It is an arithmetic number, because the mean of its divisors is an integer number (83490750).

Almost surely, 2^1290948267 is an apocalyptic number.

1290948267 is a deficient number, since it is larger than the sum of its proper divisors (712829733).

1290948267 is a wasteful number, since it uses less digits than its factorization.

1290948267 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6555 (or 6548 counting only the distinct ones).

The product of its (nonzero) digits is 435456, while the sum is 48.

The square root of 1290948267 is about 35929.7685352967. The cubic root of 1290948267 is about 1088.8539049040.

The spelling of 1290948267 in words is "one billion, two hundred ninety million, nine hundred forty-eight thousand, two hundred sixty-seven".