61535312 has 40 divisors (see below), whose sum is σ = 122313600. Its totient is φ = 29981952.

The previous prime is 61535311. The next prime is 61535323. The reversal of 61535312 is 21353516.

61535312 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 not an unprimeable number, because it can be changed into a prime (61535311) 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 7 ways as a sum of consecutive naturals, for example, 112223 + ... + 112769.

It is an arithmetic number, because the mean of its divisors is an integer number (3057840).

Almost surely, 2^61535312 is an apocalyptic number.

It is an amenable number.

61535312 is a deficient number, since it is larger than the sum of its proper divisors (60778288).

61535312 is a wasteful number, since it uses less digits than its factorization.

61535312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 723 (or 717 counting only the distinct ones).

The product of its digits is 2700, while the sum is 26.

The square root of 61535312 is about 7844.4446584828. Note that the first 3 decimals coincide. The cubic root of 61535312 is about 394.7978712682.

Adding to 61535312 its reverse (21353516), we get a palindrome (82888828).

The spelling of 61535312 in words is "sixty-one million, five hundred thirty-five thousand, three hundred twelve".