130892281 has 4 divisors (see below), whose sum is σ = 140960932. Its totient is φ = 120823632.

The previous prime is 130892257. The next prime is 130892291. The reversal of 130892281 is 182298031.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 47334400 + 83557881 = 6880^2 + 9141^2 .

It is a cyclic number.

It is not a de Polignac number, because 130892281 - 2⁵ = 130892249 is a prime.

It is a super-2 number, since 2×130892281² = 34265578450765922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (130892221) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5034306 + ... + 5034331.

It is an arithmetic number, because the mean of its divisors is an integer number (35240233).

Almost surely, 2^130892281 is an apocalyptic number.

It is an amenable number.

130892281 is a deficient number, since it is larger than the sum of its proper divisors (10068651).

130892281 is a wasteful number, since it uses less digits than its factorization.

130892281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10068650.

The product of its (nonzero) digits is 6912, while the sum is 34.

The square root of 130892281 is about 11440.8164481387. The cubic root of 130892281 is about 507.7360639908.

The spelling of 130892281 in words is "one hundred thirty million, eight hundred ninety-two thousand, two hundred eighty-one".