61165441 has 4 divisors (see below), whose sum is σ = 63824832. Its totient is φ = 58506052.

The previous prime is 61165409. The next prime is 61165457. The reversal of 61165441 is 14456116.

61165441 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 61165441 - 2⁵ = 61165409 is a prime.

It is a super-2 number, since 2×61165441² = 7482422345448962, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61165141) 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, 1329661 + ... + 1329706.

It is an arithmetic number, because the mean of its divisors is an integer number (15956208).

Almost surely, 2^61165441 is an apocalyptic number.

It is an amenable number.

61165441 is a deficient number, since it is larger than the sum of its proper divisors (2659391).

61165441 is a wasteful number, since it uses less digits than its factorization.

61165441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2659390.

The product of its digits is 2880, while the sum is 28.

The square root of 61165441 is about 7820.8337790801. The cubic root of 61165441 is about 394.0052757674.

The spelling of 61165441 in words is "sixty-one million, one hundred sixty-five thousand, four hundred forty-one".