1298587345 has 32 divisors (see below), whose sum is σ = 1741824000. Its totient is φ = 921420480.

The previous prime is 1298587321. The next prime is 1298587379. The reversal of 1298587345 is 5437858921.

It is a happy number.

It is not a de Polignac number, because 1298587345 - 2⁹ = 1298586833 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1298587292 and 1298587301.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 449616 + ... + 452494.

It is an arithmetic number, because the mean of its divisors is an integer number (54432000).

Almost surely, 2^1298587345 is an apocalyptic number.

It is an amenable number.

1298587345 is a deficient number, since it is larger than the sum of its proper divisors (443236655).

1298587345 is a wasteful number, since it uses less digits than its factorization.

1298587345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3093.

The product of its digits is 2419200, while the sum is 52.

The square root of 1298587345 is about 36035.9174296978. The cubic root of 1298587345 is about 1090.9974162903.

The spelling of 1298587345 in words is "one billion, two hundred ninety-eight million, five hundred eighty-seven thousand, three hundred forty-five".