130502457 has 12 divisors (see below), whose sum is σ = 190173204. Its totient is φ = 86231040.

The previous prime is 130502419. The next prime is 130502459. The reversal of 130502457 is 754205031.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 18481401 + 112021056 = 4299^2 + 10584^2 .

It is not a de Polignac number, because 130502457 - 2⁷ = 130502329 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 130502457.

It is not an unprimeable number, because it can be changed into a prime (130502459) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 63144 + ... + 65177.

It is an arithmetic number, because the mean of its divisors is an integer number (15847767).

Almost surely, 2^130502457 is an apocalyptic number.

It is an amenable number.

130502457 is a deficient number, since it is larger than the sum of its proper divisors (59670747).

130502457 is a wasteful number, since it uses less digits than its factorization.

130502457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128440 (or 128437 counting only the distinct ones).

The product of its (nonzero) digits is 4200, while the sum is 27.

The square root of 130502457 is about 11423.7671982582. The cubic root of 130502457 is about 507.2315154735.

Adding to 130502457 its reverse (754205031), we get a palindrome (884707488).

The spelling of 130502457 in words is "one hundred thirty million, five hundred two thousand, four hundred fifty-seven".