240265231 has 4 divisors (see below), whose sum is σ = 240335872. Its totient is φ = 240194592.

The previous prime is 240265213. The next prime is 240265243. The reversal of 240265231 is 132562042.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 132562042 = 2 ⋅66281021.

It is a cyclic number.

It is not a de Polignac number, because 240265231 - 2¹⁷ = 240134159 is a prime.

It is a super-2 number, since 2×240265231² = 115454762454966722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 240265196 and 240265205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (240265631) 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, 29946 + ... + 37111.

It is an arithmetic number, because the mean of its divisors is an integer number (60083968).

Almost surely, 2^240265231 is an apocalyptic number.

240265231 is a deficient number, since it is larger than the sum of its proper divisors (70641).

240265231 is an equidigital number, since it uses as much as digits as its factorization.

240265231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70640.

The product of its (nonzero) digits is 2880, while the sum is 25.

The square root of 240265231 is about 15500.4913147939. The cubic root of 240265231 is about 621.6753431295.

The spelling of 240265231 in words is "two hundred forty million, two hundred sixty-five thousand, two hundred thirty-one".