1300539969 has 15 divisors (see below), whose sum is σ = 1943266897. Its totient is φ = 866810268.

The previous prime is 1300539943. The next prime is 1300539983. The reversal of 1300539969 is 9699350031.

The square root of 1300539969 is 36063.

It is a perfect power (a square), and thus also a powerful number.

It is not a de Polignac number, because 1300539969 - 2¹⁹ = 1300015681 is a prime.

It is a super-2 number, since 2×1300539969² = 3382808421933041922, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1300539169) by changing a digit.

It is a polite number, since it can be written in 14 ways as a sum of consecutive naturals, for example, 322564 + ... + 326570.

Almost surely, 2^1300539969 is an apocalyptic number.

1300539969 is the 36063-rd square number.

1300539969 is the 18032-nd centered octagonal number.

It is an amenable number.

1300539969 is a deficient number, since it is larger than the sum of its proper divisors (642726928).

1300539969 is an frugal number, since it uses more digits than its factorization.

1300539969 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8026 (or 4010 counting only the distinct ones).

The product of its (nonzero) digits is 196830, while the sum is 45.

The cubic root of 1300539969 is about 1091.5439694071.

The spelling of 1300539969 in words is "one billion, three hundred million, five hundred thirty-nine thousand, nine hundred sixty-nine".