61634312 has 8 divisors (see below), whose sum is σ = 115564350. Its totient is φ = 30817152.

The previous prime is 61634303. The next prime is 61634323. The reversal of 61634312 is 21343616.

61634312 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 59691076 + 1943236 = 7726^2 + 1394^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 3852137 + ... + 3852152.

Almost surely, 2^61634312 is an apocalyptic number.

It is an amenable number.

61634312 is a deficient number, since it is larger than the sum of its proper divisors (53930038).

61634312 is a wasteful number, since it uses less digits than its factorization.

61634312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7704295 (or 7704291 counting only the distinct ones).

The product of its digits is 2592, while the sum is 26.

The square root of 61634312 is about 7850.7523206378. The cubic root of 61634312 is about 395.0094790226.

Adding to 61634312 its reverse (21343616), we get a palindrome (82977928).

The spelling of 61634312 in words is "sixty-one million, six hundred thirty-four thousand, three hundred twelve".