68162530 has 8 divisors (see below), whose sum is σ = 122692572. Its totient is φ = 27265008.

The previous prime is 68162489. The next prime is 68162539. The reversal of 68162530 is 3526186.

It can be written as a sum of positive squares in 2 ways, for example, as 55905529 + 12257001 = 7477^2 + 3501^2 .

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

It is a super-2 number, since 2×68162530² = 9292260992001800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 68162492 and 68162501.

It is not an unprimeable number, because it can be changed into a prime (68162539) 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, 3408117 + ... + 3408136.

Almost surely, 2^68162530 is an apocalyptic number.

68162530 is a deficient number, since it is larger than the sum of its proper divisors (54530042).

68162530 is a wasteful number, since it uses less digits than its factorization.

68162530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6816260.

The product of its (nonzero) digits is 8640, while the sum is 31.

The square root of 68162530 is about 8256.0601984239. The cubic root of 68162530 is about 408.4904433143.

The spelling of 68162530 in words is "sixty-eight million, one hundred sixty-two thousand, five hundred thirty".