70130530 has 8 divisors (see below), whose sum is σ = 126234972. Its totient is φ = 28052208.

The previous prime is 70130521. The next prime is 70130531. The reversal of 70130530 is 3503107.

It can be written as a sum of positive squares in 2 ways, for example, as 67092481 + 3038049 = 8191^2 + 1743^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 70130498 and 70130507.

It is not an unprimeable number, because it can be changed into a prime (70130531) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3506517 + ... + 3506536.

Almost surely, 2^70130530 is an apocalyptic number.

70130530 is a deficient number, since it is larger than the sum of its proper divisors (56104442).

70130530 is a wasteful number, since it uses less digits than its factorization.

70130530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7013060.

The product of its (nonzero) digits is 315, while the sum is 19.

The square root of 70130530 is about 8374.3972917458. The cubic root of 70130530 is about 412.3845382385.

Adding to 70130530 its reverse (3503107), we get a palindrome (73633637).

The spelling of 70130530 in words is "seventy million, one hundred thirty thousand, five hundred thirty".