130504949 has 4 divisors (see below), whose sum is σ = 130976364. Its totient is φ = 130033536.

The previous prime is 130504909. The next prime is 130504973. The reversal of 130504949 is 949405031.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 949405031 = 257 ⋅3694183.

It can be written as a sum of positive squares in 2 ways, for example, as 70442449 + 60062500 = 8393^2 + 7750^2 .

It is a cyclic number.

It is not a de Polignac number, because 130504949 - 2²⁰ = 129456373 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130504909) 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, 235292 + ... + 235845.

It is an arithmetic number, because the mean of its divisors is an integer number (32744091).

Almost surely, 2^130504949 is an apocalyptic number.

It is an amenable number.

130504949 is a deficient number, since it is larger than the sum of its proper divisors (471415).

130504949 is an equidigital number, since it uses as much as digits as its factorization.

130504949 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 471414.

The product of its (nonzero) digits is 19440, while the sum is 35.

The square root of 130504949 is about 11423.8762685876. The cubic root of 130504949 is about 507.2347440536.

The spelling of 130504949 in words is "one hundred thirty million, five hundred four thousand, nine hundred forty-nine".