61314560 has 80 divisors (see below), whose sum is σ = 150700176. Its totient is φ = 23912448.

The previous prime is 61314499. The next prime is 61314593. The reversal of 61314560 is 6541316.

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 109802 + ... + 110358.

Almost surely, 2^61314560 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 61314560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (75350088).

61314560 is an abundant number, since it is smaller than the sum of its proper divisors (89385616).

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

61314560 is an equidigital number, since it uses as much as digits as its factorization.

61314560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 623 (or 607 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 61314560 is about 7830.3614220545. The cubic root of 61314560 is about 394.3252058343.

Adding to 61314560 its reverse (6541316), we get a palindrome (67855876).

The spelling of 61314560 in words is "sixty-one million, three hundred fourteen thousand, five hundred sixty".