61315602 has 8 divisors (see below), whose sum is σ = 122631216. Its totient is φ = 20438532.

The previous prime is 61315567. The next prime is 61315621. The reversal of 61315602 is 20651316.

61315602 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

61315602 is an admirable number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 5109628 + ... + 5109639.

It is an arithmetic number, because the mean of its divisors is an integer number (15328902).

Almost surely, 2^61315602 is an apocalyptic number.

61315602 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

61315602 is a wasteful number, since it uses less digits than its factorization.

61315602 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10219272.

The product of its (nonzero) digits is 1080, while the sum is 24.

The square root of 61315602 is about 7830.4279576534. The cubic root of 61315602 is about 394.3274395861.

Adding to 61315602 its reverse (20651316), we get a palindrome (81966918).

The spelling of 61315602 in words is "sixty-one million, three hundred fifteen thousand, six hundred two".