1301133520 has 40 divisors (see below), whose sum is σ = 3027893256. Its totient is φ = 519979008.

The previous prime is 1301133511. The next prime is 1301133551. The reversal of 1301133520 is 253311031.

It can be written as a sum of positive squares in 4 ways, for example, as 230796864 + 1070336656 = 15192^2 + 32716^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 88624 + ... + 102256.

Almost surely, 2^1301133520 is an apocalyptic number.

1301133520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1301133520 is an abundant number, since it is smaller than the sum of its proper divisors (1726759736).

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

1301133520 is a wasteful number, since it uses less digits than its factorization.

1301133520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14839 (or 14833 counting only the distinct ones).

The product of its (nonzero) digits is 270, while the sum is 19.

The square root of 1301133520 is about 36071.2284237729. The cubic root of 1301133520 is about 1091.7100000539.

Adding to 1301133520 its reverse (253311031), we get a palindrome (1554444551).

The spelling of 1301133520 in words is "one billion, three hundred one million, one hundred thirty-three thousand, five hundred twenty".