130243033533649 has 27 divisors (see below), whose sum is σ = 138205344044817. Its totient is φ = 122721538339008.

The previous prime is 130243033533629. The next prime is 130243033533659. The reversal of 130243033533649 is 946335330342031.

The square root of 130243033533649 is 11412407.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 4737348137025 + 125505685396624 = 2176545^2 + 11202932^2 .

It is not a de Polignac number, because 130243033533649 - 2¹³ = 130243033525457 is a prime.

It is not an unprimeable number, because it can be changed into a prime (130243033533629) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 42716637877 + ... + 42716640925.

Almost surely, 2^{130243033533649} is an apocalyptic number.

130243033533649 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

130243033533649 is the 11412407-th square number.

130243033533649 is the 5706204-th centered octagonal number.

It is an amenable number.

130243033533649 is a deficient number, since it is larger than the sum of its proper divisors (7962310511168).

130243033533649 is an frugal number, since it uses more digits than its factorization.

130243033533649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6530 (or 3265 counting only the distinct ones).

The product of its (nonzero) digits is 6298560, while the sum is 49.

The spelling of 130243033533649 in words is "one hundred thirty trillion, two hundred forty-three billion, thirty-three million, five hundred thirty-three thousand, six hundred forty-nine".