130243145 has 8 divisors (see below), whose sum is σ = 160516104. Its totient is φ = 101378304.

The previous prime is 130243117. The next prime is 130243159. The reversal of 130243145 is 541342031.

It can be written as a sum of positive squares in 4 ways, for example, as 67453369 + 62789776 = 8213^2 + 7924^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 130243145 - 2¹² = 130239049 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 130243145.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 351824 + ... + 352193.

It is an arithmetic number, because the mean of its divisors is an integer number (20064513).

Almost surely, 2^130243145 is an apocalyptic number.

It is an amenable number.

130243145 is a deficient number, since it is larger than the sum of its proper divisors (30272959).

130243145 is an equidigital number, since it uses as much as digits as its factorization.

130243145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 704059.

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 130243145 is about 11412.4118835591. The cubic root of 130243145 is about 506.8953316785.

Adding to 130243145 its reverse (541342031), we get a palindrome (671585176).

The spelling of 130243145 in words is "one hundred thirty million, two hundred forty-three thousand, one hundred forty-five".