415643231 has 6 divisors (see below), whose sum is σ = 424677120. Its totient is φ = 406797596.

The previous prime is 415643201. The next prime is 415643287. The reversal of 415643231 is 132346514.

It is not a de Polignac number, because 415643231 - 2¹⁴ = 415626847 is a prime.

It is a super-4 number, since 4×415643231⁴ (a number of 36 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 415643194 and 415643203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (415643201) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 91871 + ... + 96288.

It is an arithmetic number, because the mean of its divisors is an integer number (70779520).

Almost surely, 2^415643231 is an apocalyptic number.

415643231 is a deficient number, since it is larger than the sum of its proper divisors (9033889).

415643231 is an equidigital number, since it uses as much as digits as its factorization.

415643231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 188253 (or 188206 counting only the distinct ones).

The product of its digits is 8640, while the sum is 29.

The square root of 415643231 is about 20387.3301587040. The cubic root of 415643231 is about 746.2887657969.

Adding to 415643231 its reverse (132346514), we get a palindrome (547989745).

The spelling of 415643231 in words is "four hundred fifteen million, six hundred forty-three thousand, two hundred thirty-one".