130017649 has 4 divisors (see below), whose sum is σ = 137665764. Its totient is φ = 122369536.

The previous prime is 130017623. The next prime is 130017677. The reversal of 130017649 is 946710031.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 946710031 = 163 ⋅5808037.

It can be written as a sum of positive squares in 2 ways, for example, as 106977649 + 23040000 = 10343^2 + 4800^2 .

It is not a de Polignac number, because 130017649 - 2⁵ = 130017617 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 130017649.

It is not an unprimeable number, because it can be changed into a prime (130017619) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3824032 + ... + 3824065.

It is an arithmetic number, because the mean of its divisors is an integer number (34416441).

Almost surely, 2^130017649 is an apocalyptic number.

It is an amenable number.

130017649 is a deficient number, since it is larger than the sum of its proper divisors (7648115).

130017649 is an equidigital number, since it uses as much as digits as its factorization.

130017649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7648114.

The product of its (nonzero) digits is 4536, while the sum is 31.

The square root of 130017649 is about 11402.5281845738. The cubic root of 130017649 is about 506.6026255526.

The spelling of 130017649 in words is "one hundred thirty million, seventeen thousand, six hundred forty-nine".