61605361 has 8 divisors (see below), whose sum is σ = 62919584. Its totient is φ = 60302880.

The previous prime is 61605347. The next prime is 61605371. The reversal of 61605361 is 16350616.

61605361 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 61605361 - 2¹⁷ = 61474289 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61605371) 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, 8101 + ... + 13741.

It is an arithmetic number, because the mean of its divisors is an integer number (7864948).

Almost surely, 2^61605361 is an apocalyptic number.

It is an amenable number.

61605361 is a deficient number, since it is larger than the sum of its proper divisors (1314223).

61605361 is a wasteful number, since it uses less digits than its factorization.

61605361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5871.

The product of its (nonzero) digits is 3240, while the sum is 28.

The square root of 61605361 is about 7848.9082680332. The cubic root of 61605361 is about 394.9476211057.

Adding to 61605361 its reverse (16350616), we get a palindrome (77955977).

The spelling of 61605361 in words is "sixty-one million, six hundred five thousand, three hundred sixty-one".