1301511530 has 32 divisors (see below), whose sum is σ = 2615139648. Its totient is φ = 462268800.

The previous prime is 1301511521. The next prime is 1301511539. The reversal of 1301511530 is 351151031.

It is an interprime number because it is at equal distance from previous prime (1301511521) and next prime (1301511539).

It is not an unprimeable number, because it can be changed into a prime (1301511539) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 132851 + ... + 142310.

It is an arithmetic number, because the mean of its divisors is an integer number (81723114).

Almost surely, 2^1301511530 is an apocalyptic number.

1301511530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1301511530 is an abundant number, since it is smaller than the sum of its proper divisors (1313628118).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1301511530 is a wasteful number, since it uses less digits than its factorization.

1301511530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 275222.

The product of its (nonzero) digits is 225, while the sum is 20.

The square root of 1301511530 is about 36076.4678149067. The cubic root of 1301511530 is about 1091.8157123253.

Adding to 1301511530 its reverse (351151031), we get a palindrome (1652662561).

The spelling of 1301511530 in words is "one billion, three hundred one million, five hundred eleven thousand, five hundred thirty".