61945012 has 24 divisors (see below), whose sum is σ = 111104000. Its totient is φ = 30209760.

The previous prime is 61945007. The next prime is 61945033. The reversal of 61945012 is 21054916.

61945012 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 7 ways as a sum of consecutive naturals, for example, 29989 + ... + 31987.

Almost surely, 2^61945012 is an apocalyptic number.

It is an amenable number.

61945012 is a deficient number, since it is larger than the sum of its proper divisors (49158988).

61945012 is a wasteful number, since it uses less digits than its factorization.

61945012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2191 (or 2189 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 28.

The square root of 61945012 is about 7870.5153579674. The cubic root of 61945012 is about 395.6721174646.

Adding to 61945012 its reverse (21054916), we get a palindrome (82999928).

The spelling of 61945012 in words is "sixty-one million, nine hundred forty-five thousand, twelve".