61108621 has 8 divisors (see below), whose sum is σ = 70035840. Its totient is φ = 52230768.

The previous prime is 61108613. The next prime is 61108661. The reversal of 61108621 is 12680116.

61108621 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 61108621 - 2³ = 61108613 is a prime.

It is a nialpdrome in base 13.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61108661) 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, 9646 + ... + 14671.

It is an arithmetic number, because the mean of its divisors is an integer number (8754480).

Almost surely, 2^61108621 is an apocalyptic number.

It is an amenable number.

61108621 is a deficient number, since it is larger than the sum of its proper divisors (8927219).

61108621 is a wasteful number, since it uses less digits than its factorization.

61108621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24683.

The product of its (nonzero) digits is 576, while the sum is 25.

The square root of 61108621 is about 7817.2003300414. The cubic root of 61108621 is about 393.8832334547.

Adding to 61108621 its reverse (12680116), we get a palindrome (73788737).

The spelling of 61108621 in words is "sixty-one million, one hundred eight thousand, six hundred twenty-one".