61245012 has 12 divisors (see below), whose sum is σ = 142905056. Its totient is φ = 20415000.

The previous prime is 61245011. The next prime is 61245047. The reversal of 61245012 is 21054216.

It is a tau number, because it is divible by the number of its divisors (12).

It is a self number, because there is not a number n which added to its sum of digits gives 61245012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61245011) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2551864 + ... + 2551887.

Almost surely, 2^61245012 is an apocalyptic number.

It is an amenable number.

61245012 is an abundant number, since it is smaller than the sum of its proper divisors (81660044).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

61245012 is a wasteful number, since it uses less digits than its factorization.

61245012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5103758 (or 5103756 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 61245012 is about 7825.9192431305. The cubic root of 61245012 is about 394.1760574373.

Adding to 61245012 its reverse (21054216), we get a palindrome (82299228).

The spelling of 61245012 in words is "sixty-one million, two hundred forty-five thousand, twelve".