1297970066 has 8 divisors (see below), whose sum is σ = 2049426480. Its totient is φ = 614827908.

The previous prime is 1297970021. The next prime is 1297970083. The reversal of 1297970066 is 6600797921.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 1297970066.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 17078516 + ... + 17078591.

It is an arithmetic number, because the mean of its divisors is an integer number (256178310).

Almost surely, 2^1297970066 is an apocalyptic number.

1297970066 is a deficient number, since it is larger than the sum of its proper divisors (751456414).

1297970066 is a wasteful number, since it uses less digits than its factorization.

1297970066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34157128.

The product of its (nonzero) digits is 285768, while the sum is 47.

The square root of 1297970066 is about 36027.3516373324. The cubic root of 1297970066 is about 1090.8245216104.

The spelling of 1297970066 in words is "one billion, two hundred ninety-seven million, nine hundred seventy thousand, sixty-six".