1260992947 has 2 divisors, whose sum is σ = 1260992948. Its totient is φ = 1260992946.

The previous prime is 1260992927. The next prime is 1260993011. The reversal of 1260992947 is 7492990621.

It is a weak prime.

It is an emirp because it is prime and its reverse (7492990621) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1260992947 - 2¹⁹ = 1260468659 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1260992947.

It is not a weakly prime, because it can be changed into another prime (1260992927) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 630496473 + 630496474.

It is an arithmetic number, because the mean of its divisors is an integer number (630496474).

Almost surely, 2^1260992947 is an apocalyptic number.

1260992947 is a deficient number, since it is larger than the sum of its proper divisors (1).

1260992947 is an equidigital number, since it uses as much as digits as its factorization.

1260992947 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 489888, while the sum is 49.

The square root of 1260992947 is about 35510.4625005082. The cubic root of 1260992947 is about 1080.3659445202.

The spelling of 1260992947 in words is "one billion, two hundred sixty million, nine hundred ninety-two thousand, nine hundred forty-seven".