130500145 has 8 divisors (see below), whose sum is σ = 162000360. Its totient is φ = 100800000.

The previous prime is 130500133. The next prime is 130500169. The reversal of 130500145 is 541005031.

It can be written as a sum of positive squares in 4 ways, for example, as 29778849 + 100721296 = 5457^2 + 10036^2 .

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

It is not a de Polignac number, because 130500145 - 2¹¹ = 130498097 is a prime.

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, 449856 + ... + 450145.

It is an arithmetic number, because the mean of its divisors is an integer number (20250045).

Almost surely, 2^130500145 is an apocalyptic number.

It is an amenable number.

130500145 is a deficient number, since it is larger than the sum of its proper divisors (31500215).

130500145 is an equidigital number, since it uses as much as digits as its factorization.

130500145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 900035.

The product of its (nonzero) digits is 300, while the sum is 19.

The square root of 130500145 is about 11423.6660052717. Note that the first 3 decimals coincide. The cubic root of 130500145 is about 507.2285200608.

Adding to 130500145 its reverse (541005031), we get a palindrome (671505176).

It can be divided in two parts, 130500 and 145, that multiplied together give a square (18922500 = 4350²).

The spelling of 130500145 in words is "one hundred thirty million, five hundred thousand, one hundred forty-five".