61317330 has 16 divisors (see below), whose sum is σ = 147161664. Its totient is φ = 16351280.

The previous prime is 61317323. The next prime is 61317337. The reversal of 61317330 is 3371316.

61317330 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (61317323) and next prime (61317337).

It is a self number, because there is not a number n which added to its sum of digits gives 61317330.

It is not an unprimeable number, because it can be changed into a prime (61317337) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1021926 + ... + 1021985.

It is an arithmetic number, because the mean of its divisors is an integer number (9197604).

Almost surely, 2^61317330 is an apocalyptic number.

61317330 is an abundant number, since it is smaller than the sum of its proper divisors (85844334).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

61317330 is a wasteful number, since it uses less digits than its factorization.

61317330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2043921.

The product of its (nonzero) digits is 1134, while the sum is 24.

The square root of 61317330 is about 7830.5382956729. The cubic root of 61317330 is about 394.3311438712.

Adding to 61317330 its reverse (3371316), we get a palindrome (64688646).

The spelling of 61317330 in words is "sixty-one million, three hundred seventeen thousand, three hundred thirty".