130655869 has 4 divisors (see below), whose sum is σ = 130764796. Its totient is φ = 130546944.

The previous prime is 130655849. The next prime is 130655879. The reversal of 130655869 is 968556031.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 968556031 = 139 ⋅6968029.

It can be written as a sum of positive squares in 2 ways, for example, as 67453369 + 63202500 = 8213^2 + 7950^2 .

It is a cyclic number.

It is not a de Polignac number, because 130655869 - 2⁷ = 130655741 is a prime.

It is a super-2 number, since 2×130655869² = 34141912208290322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130655849) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 52644 + ... + 55069.

It is an arithmetic number, because the mean of its divisors is an integer number (32691199).

Almost surely, 2^130655869 is an apocalyptic number.

It is an amenable number.

130655869 is a deficient number, since it is larger than the sum of its proper divisors (108927).

130655869 is a wasteful number, since it uses less digits than its factorization.

130655869 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108926.

The product of its (nonzero) digits is 194400, while the sum is 43.

The square root of 130655869 is about 11430.4798236994. The cubic root of 130655869 is about 507.4301960987.

It can be divided in two parts, 1306 and 55869, that added together give a palindrome (57175).

The spelling of 130655869 in words is "one hundred thirty million, six hundred fifty-five thousand, eight hundred sixty-nine".