1303513989 has 8 divisors (see below), whose sum is σ = 1738339200. Its totient is φ = 868849056.

The previous prime is 1303513973. The next prime is 1303514021. The reversal of 1303513989 is 9893153031.

It is a happy number.

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

It is not a de Polignac number, because 1303513989 - 2⁴ = 1303513973 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1303513989.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1303513909) 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, 19597 + ... + 54690.

It is an arithmetic number, because the mean of its divisors is an integer number (217292400).

Almost surely, 2^1303513989 is an apocalyptic number.

It is an amenable number.

1303513989 is a deficient number, since it is larger than the sum of its proper divisors (434825211).

1303513989 is an equidigital number, since it uses as much as digits as its factorization.

1303513989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80139.

The product of its (nonzero) digits is 87480, while the sum is 42.

The square root of 1303513989 is about 36104.2101284601. The cubic root of 1303513989 is about 1092.3753682443.

The spelling of 1303513989 in words is "one billion, three hundred three million, five hundred thirteen thousand, nine hundred eighty-nine".