231471242 has 4 divisors (see below), whose sum is σ = 347206866. Its totient is φ = 115735620.

The previous prime is 231471217. The next prime is 231471263. The reversal of 231471242 is 242174132.

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

It can be written as a sum of positive squares in only one way, i.e., 231374521 + 96721 = 15211^2 + 311^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 57867809 + ... + 57867812.

Almost surely, 2^231471242 is an apocalyptic number.

231471242 is a deficient number, since it is larger than the sum of its proper divisors (115735624).

231471242 is a wasteful number, since it uses less digits than its factorization.

231471242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115735623.

The product of its digits is 2688, while the sum is 26.

The square root of 231471242 is about 15214.1789788342. The cubic root of 231471242 is about 613.9961962225.

It can be divided in two parts, 23147 and 1242, that added together give a cube (24389 = 29³).

The spelling of 231471242 in words is "two hundred thirty-one million, four hundred seventy-one thousand, two hundred forty-two".