1298870943 has 8 divisors (see below), whose sum is σ = 1772103168. Its totient is φ = 845776344.

The previous prime is 1298870887. The next prime is 1298870971. The reversal of 1298870943 is 3490788921.

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

It is not a de Polignac number, because 1298870943 - 2¹⁰ = 1298869919 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1298870143) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5034255 + ... + 5034512.

It is an arithmetic number, because the mean of its divisors is an integer number (221512896).

Almost surely, 2^1298870943 is an apocalyptic number.

1298870943 is a deficient number, since it is larger than the sum of its proper divisors (473232225).

1298870943 is a wasteful number, since it uses less digits than its factorization.

1298870943 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10068813.

The product of its (nonzero) digits is 870912, while the sum is 51.

The square root of 1298870943 is about 36039.8521500852. The cubic root of 1298870943 is about 1091.0768313473.

The spelling of 1298870943 in words is "one billion, two hundred ninety-eight million, eight hundred seventy thousand, nine hundred forty-three".