61113212 has 6 divisors (see below), whose sum is σ = 106948128. Its totient is φ = 30556604.

The previous prime is 61113211. The next prime is 61113223. The reversal of 61113212 is 21231116.

61113212 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61113211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7639148 + ... + 7639155.

It is an arithmetic number, because the mean of its divisors is an integer number (17824688).

Almost surely, 2^61113212 is an apocalyptic number.

It is an amenable number.

61113212 is a deficient number, since it is larger than the sum of its proper divisors (45834916).

61113212 is a wasteful number, since it uses less digits than its factorization.

61113212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15278307 (or 15278305 counting only the distinct ones).

The product of its digits is 72, while the sum is 17.

The square root of 61113212 is about 7817.4939718557. The cubic root of 61113212 is about 393.8930971619.

Adding to 61113212 its reverse (21231116), we get a palindrome (82344328).

The spelling of 61113212 in words is "sixty-one million, one hundred thirteen thousand, two hundred twelve".