1298966051 has 4 divisors (see below), whose sum is σ = 1318353672. Its totient is φ = 1279578432.

The previous prime is 1298966023. The next prime is 1298966077. The reversal of 1298966051 is 1506698921.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1298966051 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1298965987 and 1298966005.

It is not an unprimeable number, because it can be changed into a prime (1298966021) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9693710 + ... + 9693843.

It is an arithmetic number, because the mean of its divisors is an integer number (329588418).

Almost surely, 2^1298966051 is an apocalyptic number.

1298966051 is a deficient number, since it is larger than the sum of its proper divisors (19387621).

1298966051 is an equidigital number, since it uses as much as digits as its factorization.

1298966051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19387620.

The product of its (nonzero) digits is 233280, while the sum is 47.

The square root of 1298966051 is about 36041.1716097021. The cubic root of 1298966051 is about 1091.1034615534.

The spelling of 1298966051 in words is "one billion, two hundred ninety-eight million, nine hundred sixty-six thousand, fifty-one".