61318268 has 48 divisors (see below), whose sum is σ = 120960000. Its totient is φ = 26959680.

The previous prime is 61318249. The next prime is 61318289. The reversal of 61318268 is 86281316.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 308033 + ... + 308231.

It is an arithmetic number, because the mean of its divisors is an integer number (2520000).

Almost surely, 2^61318268 is an apocalyptic number.

It is an amenable number.

61318268 is a deficient number, since it is larger than the sum of its proper divisors (59641732).

61318268 is a wasteful number, since it uses less digits than its factorization.

61318268 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 410 (or 408 counting only the distinct ones).

The product of its digits is 13824, while the sum is 35.

The square root of 61318268 is about 7830.5981891552. The cubic root of 61318268 is about 394.3331546172. Note that the first 3 decimals are identical.

It can be divided in two parts, 613 and 18268, that added together give a palindrome (18881).

The spelling of 61318268 in words is "sixty-one million, three hundred eighteen thousand, two hundred sixty-eight".