4561965 has 12 divisors (see below), whose sum is σ = 7907484. Its totient is φ = 2433024.

The previous prime is 4561943. The next prime is 4561979. The reversal of 4561965 is 5691654.

4561965 is a `hidden beast` number, since 4 + 561 + 96 + 5 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 3164841 + 1397124 = 1779^2 + 1182^2 .

It is not a de Polignac number, because 4561965 - 2⁶ = 4561901 is a prime.

It is a super-2 number, since 2×4561965² = 41623049322450, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 50644 + ... + 50733.

It is an arithmetic number, because the mean of its divisors is an integer number (658957).

Almost surely, 2^4561965 is an apocalyptic number.

4561965 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

4561965 is a deficient number, since it is larger than the sum of its proper divisors (3345519).

4561965 is a wasteful number, since it uses less digits than its factorization.

4561965 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101388 (or 101385 counting only the distinct ones).

The product of its digits is 32400, while the sum is 36.

The square root of 4561965 is about 2135.8756986304. The cubic root of 4561965 is about 165.8507028486.

The spelling of 4561965 in words is "four million, five hundred sixty-one thousand, nine hundred sixty-five".