4345985231 has 4 divisors (see below), whose sum is σ = 4966840272. Its totient is φ = 3725130192.

The previous prime is 4345985227. The next prime is 4345985233. The reversal of 4345985231 is 1325895434.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1325895434 = 2 ⋅662947717.

It is not a de Polignac number, because 4345985231 - 2² = 4345985227 is a prime.

It is a super-2 number, since 2×4345985231² = 37775175256140246722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4345985233) 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, 310427510 + ... + 310427523.

It is an arithmetic number, because the mean of its divisors is an integer number (1241710068).

Almost surely, 2^4345985231 is an apocalyptic number.

4345985231 is a deficient number, since it is larger than the sum of its proper divisors (620855041).

4345985231 is an equidigital number, since it uses as much as digits as its factorization.

4345985231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 620855040.

The product of its digits is 518400, while the sum is 44.

The square root of 4345985231 is about 65924.0868802898. The cubic root of 4345985231 is about 1631.9095428715.

The spelling of 4345985231 in words is "four billion, three hundred forty-five million, nine hundred eighty-five thousand, two hundred thirty-one".