61017612 has 24 divisors (see below), whose sum is σ = 143759616. Its totient is φ = 20141328.

The previous prime is 61017611. The next prime is 61017647. The reversal of 61017612 is 21671016.

It is not an unprimeable number, because it can be changed into a prime (61017611) by changing a digit.

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, 23448 + ... + 25919.

It is an arithmetic number, because the mean of its divisors is an integer number (5989984).

Almost surely, 2^61017612 is an apocalyptic number.

It is an amenable number.

61017612 is an abundant number, since it is smaller than the sum of its proper divisors (82742004).

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

61017612 is a wasteful number, since it uses less digits than its factorization.

61017612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49477 (or 49475 counting only the distinct ones).

The product of its (nonzero) digits is 504, while the sum is 24.

The square root of 61017612 is about 7811.3770873003. The cubic root of 61017612 is about 393.6875996857.

Adding to 61017612 its reverse (21671016), we get a palindrome (82688628).

The spelling of 61017612 in words is "sixty-one million, seventeen thousand, six hundred twelve".