1012949291 has 2 divisors, whose sum is σ = 1012949292. Its totient is φ = 1012949290.

The previous prime is 1012949257. The next prime is 1012949293. The reversal of 1012949291 is 1929492101.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1012949291 is a prime.

It is a super-2 number, since 2×1012949291² = 2052132532274805362, which contains 22 as substring.

Together with 1012949293, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1012949293) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 506474645 + 506474646.

It is an arithmetic number, because the mean of its divisors is an integer number (506474646).

Almost surely, 2^1012949291 is an apocalyptic number.

1012949291 is a deficient number, since it is larger than the sum of its proper divisors (1).

1012949291 is an equidigital number, since it uses as much as digits as its factorization.

1012949291 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11664, while the sum is 38.

The square root of 1012949291 is about 31826.8642973196. The cubic root of 1012949291 is about 1004.2979316527.

The spelling of 1012949291 in words is "one billion, twelve million, nine hundred forty-nine thousand, two hundred ninety-one".