61419812 has 12 divisors (see below), whose sum is σ = 107795100. Its totient is φ = 30621216.

The previous prime is 61419811. The next prime is 61419823. The reversal of 61419812 is 21891416.

It can be written as a sum of positive squares in 2 ways, for example, as 29767936 + 31651876 = 5456^2 + 5626^2 .

It is a super-2 number, since 2×61419812² = 7544786612230688, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (61419811) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 20603 + ... + 23394.

It is an arithmetic number, because the mean of its divisors is an integer number (8982925).

Almost surely, 2^61419812 is an apocalyptic number.

It is an amenable number.

61419812 is a deficient number, since it is larger than the sum of its proper divisors (46375288).

61419812 is a wasteful number, since it uses less digits than its factorization.

61419812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44350 (or 44348 counting only the distinct ones).

The product of its digits is 3456, while the sum is 32.

The square root of 61419812 is about 7837.0793029036. The cubic root of 61419812 is about 394.5507085044.

The spelling of 61419812 in words is "sixty-one million, four hundred nineteen thousand, eight hundred twelve".