1300066538 has 8 divisors (see below), whose sum is σ = 1950257088. Its totient is φ = 649980844.

The previous prime is 1300066529. The next prime is 1300066541. The reversal of 1300066538 is 8356600031.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24095 + ... + 56397.

It is an arithmetic number, because the mean of its divisors is an integer number (243782136).

Almost surely, 2^1300066538 is an apocalyptic number.

1300066538 is a deficient number, since it is larger than the sum of its proper divisors (650190550).

1300066538 is a wasteful number, since it uses less digits than its factorization.

1300066538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52428.

The product of its (nonzero) digits is 12960, while the sum is 32.

The square root of 1300066538 is about 36056.4354588747. The cubic root of 1300066538 is about 1091.4115030254.

Adding to 1300066538 its reverse (8356600031), we get a palindrome (9656666569).

The spelling of 1300066538 in words is "one billion, three hundred million, sixty-six thousand, five hundred thirty-eight".