4315681 has 4 divisors (see below), whose sum is σ = 4407552. Its totient is φ = 4223812.

The previous prime is 4315607. The next prime is 4315709. The reversal of 4315681 is 1865134.

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, and also an emirpimes, since its reverse is a distinct semiprime: 1865134 = 2 ⋅932567.

It is a cyclic number.

It is not a de Polignac number, because 4315681 - 2¹³ = 4307489 is a prime.

It is a super-2 number, since 2×4315681² = 37250204987522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4315601) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 45865 + ... + 45958.

It is an arithmetic number, because the mean of its divisors is an integer number (1101888).

Almost surely, 2^4315681 is an apocalyptic number.

It is an amenable number.

4315681 is a deficient number, since it is larger than the sum of its proper divisors (91871).

4315681 is an equidigital number, since it uses as much as digits as its factorization.

4315681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91870.

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

The square root of 4315681 is about 2077.4217193435. The cubic root of 4315681 is about 162.8107631123.

The spelling of 4315681 in words is "four million, three hundred fifteen thousand, six hundred eighty-one".