231472471 has 4 divisors (see below), whose sum is σ = 234927352. Its totient is φ = 228017592.

The previous prime is 231472453. The next prime is 231472487. The reversal of 231472471 is 174274132.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 231472471 - 2⁷ = 231472343 is a prime.

It is a super-3 number, since 3×231472471³ (a number of 26 digits) contains 333 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 (231472411) 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, 1727340 + ... + 1727473.

It is an arithmetic number, because the mean of its divisors is an integer number (58731838).

Almost surely, 2^231472471 is an apocalyptic number.

231472471 is a deficient number, since it is larger than the sum of its proper divisors (3454881).

231472471 is an equidigital number, since it uses as much as digits as its factorization.

231472471 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3454880.

The product of its digits is 9408, while the sum is 31.

The square root of 231472471 is about 15214.2193687353. The cubic root of 231472471 is about 613.9972828946.

It can be divided in two parts, 23 and 1472471, that multiplied together give a palindrome (33866833).

The spelling of 231472471 in words is "two hundred thirty-one million, four hundred seventy-two thousand, four hundred seventy-one".