231280269 has 8 divisors (see below), whose sum is σ = 336407712. Its totient is φ = 140169840.

The previous prime is 231280267. The next prime is 231280289. The reversal of 231280269 is 962082132.

It is a happy number.

231280269 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 231280269 - 2¹ = 231280267 is a prime.

It is a super-2 number, since 2×231280269² = 106981125657424722, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33), and also a Moran number because the ratio is a prime number: 7008493 = 231280269 / (2 + 3 + 1 + 2 + 8 + 0 + 2 + 6 + 9).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231280261) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3504214 + ... + 3504279.

It is an arithmetic number, because the mean of its divisors is an integer number (42050964).

Almost surely, 2^231280269 is an apocalyptic number.

It is an amenable number.

231280269 is a deficient number, since it is larger than the sum of its proper divisors (105127443).

231280269 is a wasteful number, since it uses less digits than its factorization.

231280269 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7008507.

The product of its (nonzero) digits is 10368, while the sum is 33.

The square root of 231280269 is about 15207.9015317696. The cubic root of 231280269 is about 613.8272926523.

The spelling of 231280269 in words is "two hundred thirty-one million, two hundred eighty thousand, two hundred sixty-nine".