130241621 has 8 divisors (see below), whose sum is σ = 133018200. Its totient is φ = 127494400.

The previous prime is 130241603. The next prime is 130241623. The reversal of 130241621 is 126142031.

It can be written as a sum of positive squares in 4 ways, for example, as 13060996 + 117180625 = 3614^2 + 10825^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-130241621 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 130241593 and 130241602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130241623) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1745 + ... + 16233.

It is an arithmetic number, because the mean of its divisors is an integer number (16627275).

Almost surely, 2^130241621 is an apocalyptic number.

It is an amenable number.

130241621 is a deficient number, since it is larger than the sum of its proper divisors (2776579).

130241621 is a wasteful number, since it uses less digits than its factorization.

130241621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14679.

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 130241621 is about 11412.3451139544. The cubic root of 130241621 is about 506.8933545777.

Adding to 130241621 its reverse (126142031), we get a palindrome (256383652).

The spelling of 130241621 in words is "one hundred thirty million, two hundred forty-one thousand, six hundred twenty-one".