61272212 has 6 divisors (see below), whose sum is σ = 107226378. Its totient is φ = 30636104.

The previous prime is 61272209. The next prime is 61272217. The reversal of 61272212 is 21227216.

It is a happy number.

61272212 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 54228496 + 7043716 = 7364^2 + 2654^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61272217) 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, 7659023 + ... + 7659030.

It is an arithmetic number, because the mean of its divisors is an integer number (17871063).

Almost surely, 2^61272212 is an apocalyptic number.

It is an amenable number.

61272212 is a deficient number, since it is larger than the sum of its proper divisors (45954166).

61272212 is a wasteful number, since it uses less digits than its factorization.

61272212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15318057 (or 15318055 counting only the distinct ones).

The product of its digits is 672, while the sum is 23.

The square root of 61272212 is about 7827.6568652439. The cubic root of 61272212 is about 394.2344023353.

Adding to 61272212 its reverse (21227216), we get a palindrome (82499428).

The spelling of 61272212 in words is "sixty-one million, two hundred seventy-two thousand, two hundred twelve".