1303972489 has 4 divisors (see below), whose sum is σ = 1372602640. Its totient is φ = 1235342340.

The previous prime is 1303972459. The next prime is 1303972507. The reversal of 1303972489 is 9842793031.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 9842793031 = 503 ⋅19568177.

It is a cyclic number.

It is not a de Polignac number, because 1303972489 - 2⁷ = 1303972361 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1303972459) 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, 34315047 + ... + 34315084.

It is an arithmetic number, because the mean of its divisors is an integer number (343150660).

Almost surely, 2^1303972489 is an apocalyptic number.

1303972489 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

1303972489 is a deficient number, since it is larger than the sum of its proper divisors (68630151).

1303972489 is an equidigital number, since it uses as much as digits as its factorization.

1303972489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68630150.

The product of its (nonzero) digits is 326592, while the sum is 46.

The square root of 1303972489 is about 36110.5592451848. The cubic root of 1303972489 is about 1092.5034311569.

The spelling of 1303972489 in words is "one billion, three hundred three million, nine hundred seventy-two thousand, four hundred eighty-nine".