61345260 has 144 divisors (see below), whose sum is σ = 195529152. Its totient is φ = 15552000.

The previous prime is 61345259. The next prime is 61345261. The reversal of 61345260 is 6254316.

61345260 is a `hidden beast` number, since 6 + 134 + 526 + 0 = 666.

61345260 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 (61345259) and next prime (61345261).

It is not an unprimeable number, because it can be changed into a prime (61345261) 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 47 ways as a sum of consecutive naturals, for example, 406185 + ... + 406335.

Almost surely, 2^61345260 is an apocalyptic number.

61345260 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 61345260, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (97764576).

61345260 is an abundant number, since it is smaller than the sum of its proper divisors (134183892).

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

61345260 is a wasteful number, since it uses less digits than its factorization.

61345260 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 264 (or 259 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

The square root of 61345260 is about 7832.3214949337. The cubic root of 61345260 is about 394.3910073010.

Adding to 61345260 its reverse (6254316), we get a palindrome (67599576).

The spelling of 61345260 in words is "sixty-one million, three hundred forty-five thousand, two hundred sixty".