130045221 has 6 divisors (see below), whose sum is σ = 187843110. Its totient is φ = 86696808.

The previous prime is 130045219. The next prime is 130045241. The reversal of 130045221 is 122540031.

It can be written as a sum of positive squares in only one way, i.e., 72437121 + 57608100 = 8511^2 + 7590^2 .

It is not a de Polignac number, because 130045221 - 2¹ = 130045219 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 130045194 and 130045203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130045211) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 7224726 + ... + 7224743.

It is an arithmetic number, because the mean of its divisors is an integer number (31307185).

Almost surely, 2^130045221 is an apocalyptic number.

It is an amenable number.

130045221 is a deficient number, since it is larger than the sum of its proper divisors (57797889).

130045221 is a wasteful number, since it uses less digits than its factorization.

130045221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14449475 (or 14449472 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 130045221 is about 11403.7371506011. The cubic root of 130045221 is about 506.6384336665.

Adding to 130045221 its reverse (122540031), we get a palindrome (252585252).

It can be divided in two parts, 13004 and 5221, that added together give a square (18225 = 135²).

The spelling of 130045221 in words is "one hundred thirty million, forty-five thousand, two hundred twenty-one".