61619112 has 24 divisors (see below), whose sum is σ = 166885290. Its totient is φ = 20539680.

The previous prime is 61619111. The next prime is 61619123. The reversal of 61619112 is 21191616.

It can be written as a sum of positive squares in only one way, i.e., 31741956 + 29877156 = 5634^2 + 5466^2 .

It is a tau number, because it is divible by the number of its divisors (24).

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (61619111) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 427839 + ... + 427982.

Almost surely, 2^61619112 is an apocalyptic number.

It is an amenable number.

61619112 is an abundant number, since it is smaller than the sum of its proper divisors (105266178).

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

61619112 is a wasteful number, since it uses less digits than its factorization.

61619112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 855833 (or 855826 counting only the distinct ones).

The product of its digits is 648, while the sum is 27.

The square root of 61619112 is about 7849.7842008555. The cubic root of 61619112 is about 394.9770044830.

The spelling of 61619112 in words is "sixty-one million, six hundred nineteen thousand, one hundred twelve".