1302303140 has 12 divisors (see below), whose sum is σ = 2734836636. Its totient is φ = 520921248.

The previous prime is 1302303133. The next prime is 1302303151. The reversal of 1302303140 is 413032031.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 209207296 + 1093095844 = 14464^2 + 33062^2 .

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, 32557559 + ... + 32557598.

It is an arithmetic number, because the mean of its divisors is an integer number (227903053).

Almost surely, 2^1302303140 is an apocalyptic number.

1302303140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1302303140 is an abundant number, since it is smaller than the sum of its proper divisors (1432533496).

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

1302303140 is a wasteful number, since it uses less digits than its factorization.

1302303140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65115166 (or 65115164 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 1302303140 is about 36087.4374263399. The cubic root of 1302303140 is about 1092.0370234823.

Adding to 1302303140 its reverse (413032031), we get a palindrome (1715335171).

The spelling of 1302303140 in words is "one billion, three hundred two million, three hundred three thousand, one hundred forty".