61229372 has 12 divisors (see below), whose sum is σ = 107835000. Its totient is φ = 30419376.

The previous prime is 61229347. The next prime is 61229401. The reversal of 61229372 is 27392216.

It is a happy number.

61229372 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 an unprimeable number.

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 in 3 ways as a sum of consecutive naturals, for example, 48122 + ... + 49377.

It is an arithmetic number, because the mean of its divisors is an integer number (8986250).

Almost surely, 2^61229372 is an apocalyptic number.

It is an amenable number.

61229372 is a deficient number, since it is larger than the sum of its proper divisors (46605628).

61229372 is a wasteful number, since it uses less digits than its factorization.

61229372 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97660 (or 97658 counting only the distinct ones).

The product of its digits is 9072, while the sum is 32.

The square root of 61229372 is about 7824.9199356926. The cubic root of 61229372 is about 394.1425012984.

The spelling of 61229372 in words is "sixty-one million, two hundred twenty-nine thousand, three hundred seventy-two".