1301308730 has 16 divisors (see below), whose sum is σ = 2380756104. Its totient is φ = 511990080.

The previous prime is 1301308711. The next prime is 1301308739. The reversal of 1301308730 is 378031031.

It can be written as a sum of positive squares in 4 ways, for example, as 539493529 + 761815201 = 23227^2 + 27601^2 .

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1301308730.

It is not an unprimeable number, because it can be changed into a prime (1301308739) 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, 1066037 + ... + 1067256.

Almost surely, 2^1301308730 is an apocalyptic number.

1301308730 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1301308730 is a deficient number, since it is larger than the sum of its proper divisors (1079447374).

1301308730 is a wasteful number, since it uses less digits than its factorization.

1301308730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2133361.

The product of its (nonzero) digits is 1512, while the sum is 26.

The square root of 1301308730 is about 36073.6570089588. The cubic root of 1301308730 is about 1091.7590008984.

Adding to 1301308730 its reverse (378031031), we get a palindrome (1679339761).

The spelling of 1301308730 in words is "one billion, three hundred one million, three hundred eight thousand, seven hundred thirty".