1298435063 has 4 divisors (see below), whose sum is σ = 1299333840. Its totient is φ = 1297536288.

The previous prime is 1298435041. The next prime is 1298435069. The reversal of 1298435063 is 3605348921.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3605348921 = 1471 ⋅2450951.

It is a cyclic number.

It is not a de Polignac number, because 1298435063 - 2⁸ = 1298434807 is a prime.

It is a super-2 number, since 2×1298435063² = 3371867225655627938, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1298435063.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1298435069) 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, 447218 + ... + 450111.

It is an arithmetic number, because the mean of its divisors is an integer number (324833460).

Almost surely, 2^1298435063 is an apocalyptic number.

1298435063 is a deficient number, since it is larger than the sum of its proper divisors (898777).

1298435063 is an equidigital number, since it uses as much as digits as its factorization.

1298435063 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 898776.

The product of its (nonzero) digits is 155520, while the sum is 41.

The square root of 1298435063 is about 36033.8044480457. The cubic root of 1298435063 is about 1090.9547684689.

The spelling of 1298435063 in words is "one billion, two hundred ninety-eight million, four hundred thirty-five thousand, sixty-three".