61045512 has 64 divisors (see below), whose sum is σ = 168652800. Its totient is φ = 18258240.

The previous prime is 61045507. The next prime is 61045513. The reversal of 61045512 is 21554016.

61045512 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is not an unprimeable number, because it can be changed into a prime (61045513) 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 in 15 ways as a sum of consecutive naturals, for example, 19393 + ... + 22319.

It is an arithmetic number, because the mean of its divisors is an integer number (2635200).

Almost surely, 2^61045512 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 61045512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (84326400).

61045512 is an abundant number, since it is smaller than the sum of its proper divisors (107607288).

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

61045512 is a wasteful number, since it uses less digits than its factorization.

61045512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3026 (or 3022 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 24.

The square root of 61045512 is about 7813.1627398897. The cubic root of 61045512 is about 393.7475944423.

Adding to 61045512 its reverse (21554016), we get a palindrome (82599528).

The spelling of 61045512 in words is "sixty-one million, forty-five thousand, five hundred twelve".