61411121 has 4 divisors (see below), whose sum is σ = 61445232. Its totient is φ = 61377012.

The previous prime is 61411117. The next prime is 61411169. The reversal of 61411121 is 12111416.

61411121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 61411121 - 2² = 61411117 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 61411121.

It is not an unprimeable number, because it can be changed into a prime (61401121) 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 3 ways as a sum of consecutive naturals, for example, 14195 + ... + 18008.

It is an arithmetic number, because the mean of its divisors is an integer number (15361308).

Almost surely, 2^61411121 is an apocalyptic number.

It is an amenable number.

61411121 is a deficient number, since it is larger than the sum of its proper divisors (34111).

61411121 is a wasteful number, since it uses less digits than its factorization.

61411121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34110.

The product of its digits is 48, while the sum is 17.

The square root of 61411121 is about 7836.5248037635. The cubic root of 61411121 is about 394.5320977780.

Adding to 61411121 its reverse (12111416), we get a palindrome (73522537).

The spelling of 61411121 in words is "sixty-one million, four hundred eleven thousand, one hundred twenty-one".