130030045 has 4 divisors (see below), whose sum is σ = 156036060. Its totient is φ = 104024032.

The previous prime is 130030031. The next prime is 130030051. The reversal of 130030045 is 540030031.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 540030031 = 337 ⋅1602463.

It can be written as a sum of positive squares in 2 ways, for example, as 80946009 + 49084036 = 8997^2 + 7006^2 .

It is a cyclic number.

It is not a de Polignac number, because 130030045 - 2⁵ = 130030013 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13003000 + ... + 13003009.

It is an arithmetic number, because the mean of its divisors is an integer number (39009015).

Almost surely, 2^130030045 is an apocalyptic number.

It is an amenable number.

130030045 is a deficient number, since it is larger than the sum of its proper divisors (26006015).

130030045 is an equidigital number, since it uses as much as digits as its factorization.

130030045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26006014.

The product of its (nonzero) digits is 180, while the sum is 16.

The square root of 130030045 is about 11403.0717352826. The cubic root of 130030045 is about 506.6187250248.

Adding to 130030045 its reverse (540030031), we get a palindrome (670060076).

The spelling of 130030045 in words is "one hundred thirty million, thirty thousand, forty-five".