1300539997 has 4 divisors (see below), whose sum is σ = 1305485280. Its totient is φ = 1295594716.

The previous prime is 1300539983. The next prime is 1300540079. The reversal of 1300539997 is 7999350031.

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.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1300539997 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1300539197) 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, 2472247 + ... + 2472772.

It is an arithmetic number, because the mean of its divisors is an integer number (326371320).

Almost surely, 2^1300539997 is an apocalyptic number.

It is an amenable number.

1300539997 is a deficient number, since it is larger than the sum of its proper divisors (4945283).

1300539997 is an equidigital number, since it uses as much as digits as its factorization.

1300539997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4945282.

The product of its (nonzero) digits is 229635, while the sum is 46.

The square root of 1300539997 is about 36063.0003882095. Note that the first 3 decimals coincide. The cubic root of 1300539997 is about 1091.5439772405.

The spelling of 1300539997 in words is "one billion, three hundred million, five hundred thirty-nine thousand, nine hundred ninety-seven".