61107712 has 60 divisors (see below), whose sum is σ = 126909288. Its totient is φ = 29388800.

The previous prime is 61107703. The next prime is 61107721. The reversal of 61107712 is 21770116.

It is an interprime number because it is at equal distance from previous prime (61107703) and next prime (61107721).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 860637 + ... + 860707.

Almost surely, 2^61107712 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 61107712, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (63454644).

61107712 is an abundant number, since it is smaller than the sum of its proper divisors (65801576).

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

61107712 is an frugal number, since it uses more digits than its factorization.

61107712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 171 (or 114 counting only the distinct ones).

The product of its (nonzero) digits is 588, while the sum is 25.

The square root of 61107712 is about 7817.1421888053. The cubic root of 61107712 is about 393.8812804207.

Adding to 61107712 its reverse (21770116), we get a palindrome (82877828).

The spelling of 61107712 in words is "sixty-one million, one hundred seven thousand, seven hundred twelve".