61543112 has 8 divisors (see below), whose sum is σ = 115393350. Its totient is φ = 30771552.

The previous prime is 61543103. The next prime is 61543127. The reversal of 61543112 is 21134516.

It can be written as a sum of positive squares in only one way, i.e., 58767556 + 2775556 = 7666^2 + 1666^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a zygodrome in base 5.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3846437 + ... + 3846452.

Almost surely, 2^61543112 is an apocalyptic number.

It is an amenable number.

61543112 is a deficient number, since it is larger than the sum of its proper divisors (53850238).

61543112 is a wasteful number, since it uses less digits than its factorization.

61543112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7692895 (or 7692891 counting only the distinct ones).

The product of its digits is 720, while the sum is 23.

The square root of 61543112 is about 7844.9418098543. The cubic root of 61543112 is about 394.8145516273.

Adding to 61543112 its reverse (21134516), we get a palindrome (82677628).

The spelling of 61543112 in words is "sixty-one million, five hundred forty-three thousand, one hundred twelve".