65441931 has 8 divisors (see below), whose sum is σ = 88307520. Its totient is φ = 43102152.

The previous prime is 65441927. The next prime is 65441939. The reversal of 65441931 is 13914456.

65441931 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 not a de Polignac number, because 65441931 - 2² = 65441927 is a prime.

It is a super-2 number, since 2×65441931² = 8565292666017522, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 65441892 and 65441901.

It is not an unprimeable number, because it can be changed into a prime (65441939) 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, 131161 + ... + 131658.

It is an arithmetic number, because the mean of its divisors is an integer number (11038440).

Almost surely, 2^65441931 is an apocalyptic number.

65441931 is a deficient number, since it is larger than the sum of its proper divisors (22865589).

65441931 is a wasteful number, since it uses less digits than its factorization.

65441931 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 262905.

The product of its digits is 12960, while the sum is 33.

The square root of 65441931 is about 8089.6187178383. The cubic root of 65441931 is about 402.9817407429.

The spelling of 65441931 in words is "sixty-five million, four hundred forty-one thousand, nine hundred thirty-one".