4319561 has 8 divisors (see below), whose sum is σ = 4551360. Its totient is φ = 4091472.

The previous prime is 4319551. The next prime is 4319563. The reversal of 4319561 is 1659134.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4319561 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (4319563) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1646 + ... + 3368.

It is an arithmetic number, because the mean of its divisors is an integer number (568920).

Almost surely, 2^4319561 is an apocalyptic number.

It is an amenable number.

4319561 is a deficient number, since it is larger than the sum of its proper divisors (231799).

4319561 is a wasteful number, since it uses less digits than its factorization.

4319561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1855.

The product of its digits is 3240, while the sum is 29.

The square root of 4319561 is about 2078.3553594128. The cubic root of 4319561 is about 162.8595400063.

The spelling of 4319561 in words is "four million, three hundred nineteen thousand, five hundred sixty-one".