61130512 has 40 divisors (see below), whose sum is σ = 125603072. Its totient is φ = 28771200.

The previous prime is 61130497. The next prime is 61130539. The reversal of 61130512 is 21503116.

It is a self number, because there is not a number n which added to its sum of digits gives 61130512.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16687 + ... + 20017.

Almost surely, 2^61130512 is an apocalyptic number.

61130512 is a gapful number since it is divisible by the number (62) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 61130512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (62801536).

61130512 is an abundant number, since it is smaller than the sum of its proper divisors (64472560).

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

61130512 is a wasteful number, since it uses less digits than its factorization.

61130512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3407 (or 3401 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 19.

The square root of 61130512 is about 7818.6003862584. The cubic root of 61130512 is about 393.9302615625.

Adding to 61130512 its reverse (21503116), we get a palindrome (82633628).

The spelling of 61130512 in words is "sixty-one million, one hundred thirty thousand, five hundred twelve".