130616465281 has 3 divisors (see below), whose sum is σ = 130616826691. Its totient is φ = 130616103872.

The previous prime is 130616465233. The next prime is 130616465297. The reversal of 130616465281 is 182564616031.

The square root of 130616465281 is 361409.

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

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in only one way, i.e., 85824975681 + 44791489600 = 292959^2 + 211640^2 .

It is not a de Polignac number, because 130616465281 - 2¹³ = 130616457089 is a prime.

It is a super-2 number, since 2×130616465281² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (130616465201) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 180705 + ... + 542113.

Almost surely, 2^130616465281 is an apocalyptic number.

130616465281 is the 361409-th square number.

130616465281 is the 180705-th centered octagonal number.

It is an amenable number.

130616465281 is a deficient number, since it is larger than the sum of its proper divisors (361410).

130616465281 is an frugal number, since it uses more digits than its factorization.

130616465281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 722818 (or 361409 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 43.

The spelling of 130616465281 in words is "one hundred thirty billion, six hundred sixteen million, four hundred sixty-five thousand, two hundred eighty-one".