61013112 has 64 divisors (see below), whose sum is σ = 160807680. Its totient is φ = 19252992.

The previous prime is 61013101. The next prime is 61013131. The reversal of 61013112 is 21131016.

It is a junction number, because it is equal to n+sod(n) for n = 61013091 and 61013100.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 58548 + ... + 59580.

It is an arithmetic number, because the mean of its divisors is an integer number (2512620).

Almost surely, 2^61013112 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 61013112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (80403840).

61013112 is an abundant number, since it is smaller than the sum of its proper divisors (99794568).

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

61013112 is a wasteful number, since it uses less digits than its factorization.

61013112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1172 (or 1168 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 15.

The square root of 61013112 is about 7811.0890405884. The cubic root of 61013112 is about 393.6779213994.

Adding to 61013112 its reverse (21131016), we get a palindrome (82144128).

The spelling of 61013112 in words is "sixty-one million, thirteen thousand, one hundred twelve".