130811215 has 4 divisors (see below), whose sum is σ = 156973464. Its totient is φ = 104648968.

The previous prime is 130811207. The next prime is 130811251. The reversal of 130811215 is 512118031.

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

It is a cyclic number.

It is not a de Polignac number, because 130811215 - 2³ = 130811207 is a prime.

It is a super-2 number, since 2×130811215² = 34223147939552450, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13081117 + ... + 13081126.

It is an arithmetic number, because the mean of its divisors is an integer number (39243366).

Almost surely, 2^130811215 is an apocalyptic number.

130811215 is a deficient number, since it is larger than the sum of its proper divisors (26162249).

130811215 is an equidigital number, since it uses as much as digits as its factorization.

130811215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26162248.

The product of its (nonzero) digits is 240, while the sum is 22.

The square root of 130811215 is about 11437.2730578578. The cubic root of 130811215 is about 507.6312229932.

Adding to 130811215 its reverse (512118031), we get a palindrome (642929246).

The spelling of 130811215 in words is "one hundred thirty million, eight hundred eleven thousand, two hundred fifteen".