68536130 has 32 divisors (see below), whose sum is σ = 133282800. Its totient is φ = 25224192.

The previous prime is 68536081. The next prime is 68536157. The reversal of 68536130 is 3163586.

It can be written as a sum of positive squares in 8 ways, for example, as 44102881 + 24433249 = 6641^2 + 4943^2 .

It is a super-2 number, since 2×68536130² = 9394402230753800, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 52526 + ... + 53814.

Almost surely, 2^68536130 is an apocalyptic number.

68536130 is a deficient number, since it is larger than the sum of its proper divisors (64746670).

68536130 is a wasteful number, since it uses less digits than its factorization.

68536130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1718.

The product of its (nonzero) digits is 12960, while the sum is 32.

The square root of 68536130 is about 8278.6550840097. The cubic root of 68536130 is about 409.2353983138.

The spelling of 68536130 in words is "sixty-eight million, five hundred thirty-six thousand, one hundred thirty".