1298884517 has 16 divisors (see below), whose sum is σ = 1563893760. Its totient is φ = 1053838512.

The previous prime is 1298884511. The next prime is 1298884553. The reversal of 1298884517 is 7154888921.

It is a cyclic number.

It is not a de Polignac number, because 1298884517 - 2¹⁶ = 1298818981 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1298884511) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 185828 + ... + 192690.

It is an arithmetic number, because the mean of its divisors is an integer number (97743360).

Almost surely, 2^1298884517 is an apocalyptic number.

It is an amenable number.

1298884517 is a deficient number, since it is larger than the sum of its proper divisors (265009243).

1298884517 is a wasteful number, since it uses less digits than its factorization.

1298884517 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8312.

The product of its digits is 1290240, while the sum is 53.

The square root of 1298884517 is about 36040.0404689007. The cubic root of 1298884517 is about 1091.0806321420.

The spelling of 1298884517 in words is "one billion, two hundred ninety-eight million, eight hundred eighty-four thousand, five hundred seventeen".