4231454781 has 4 divisors (see below), whose sum is σ = 5641939712. Its totient is φ = 2820969852.

The previous prime is 4231454779. The next prime is 4231454783. The reversal of 4231454781 is 1874541324.

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.

It is an interprime number because it is at equal distance from previous prime (4231454779) and next prime (4231454783).

It is not a de Polignac number, because 4231454781 - 2¹ = 4231454779 is a prime.

It is a super-2 number, since 2×4231454781² = 35810419127295515922, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4231454783) 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, 705242461 + ... + 705242466.

It is an arithmetic number, because the mean of its divisors is an integer number (1410484928).

Almost surely, 2^4231454781 is an apocalyptic number.

It is an amenable number.

4231454781 is a deficient number, since it is larger than the sum of its proper divisors (1410484931).

4231454781 is a wasteful number, since it uses less digits than its factorization.

4231454781 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1410484930.

The product of its digits is 107520, while the sum is 39.

The square root of 4231454781 is about 65049.6332118791. The cubic root of 4231454781 is about 1617.4464139811.

The spelling of 4231454781 in words is "four billion, two hundred thirty-one million, four hundred fifty-four thousand, seven hundred eighty-one".