130122145 has 4 divisors (see below), whose sum is σ = 156146580. Its totient is φ = 104097712.

The previous prime is 130122137. The next prime is 130122191. The reversal of 130122145 is 541221031.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 541221031 = 13 ⋅41632387.

It can be written as a sum of positive squares in 2 ways, for example, as 17740944 + 112381201 = 4212^2 + 10601^2 .

It is a cyclic number.

It is not a de Polignac number, because 130122145 - 2³ = 130122137 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13012210 + ... + 13012219.

It is an arithmetic number, because the mean of its divisors is an integer number (39036645).

Almost surely, 2^130122145 is an apocalyptic number.

It is an amenable number.

130122145 is a deficient number, since it is larger than the sum of its proper divisors (26024435).

130122145 is an equidigital number, since it uses as much as digits as its factorization.

130122145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26024434.

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 130122145 is about 11407.1094059801. The cubic root of 130122145 is about 506.7383091118.

Adding to 130122145 its reverse (541221031), we get a palindrome (671343176).

The spelling of 130122145 in words is "one hundred thirty million, one hundred twenty-two thousand, one hundred forty-five".