1361304520 has 32 divisors (see below), whose sum is σ = 3067771320. Its totient is φ = 543662080.

The previous prime is 1361304517. The next prime is 1361304577. The reversal of 1361304520 is 254031631.

It can be written as a sum of positive squares in 4 ways, for example, as 1349974564 + 11329956 = 36742^2 + 3366^2 .

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, 907 + ... + 52186.

Almost surely, 2^1361304520 is an apocalyptic number.

1361304520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1361304520 is an abundant number, since it is smaller than the sum of its proper divisors (1706466800).

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

1361304520 is a wasteful number, since it uses less digits than its factorization.

1361304520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53745 (or 53741 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 1361304520 is about 36895.8604724161. The cubic root of 1361304520 is about 1108.2857829990.

The spelling of 1361304520 in words is "one billion, three hundred sixty-one million, three hundred four thousand, five hundred twenty".