231261266 has 8 divisors (see below), whose sum is σ = 348969600. Its totient is φ = 114938068.

The previous prime is 231261263. The next prime is 231261269. The reversal of 231261266 is 662162132.

It is an interprime number because it is at equal distance from previous prime (231261263) and next prime (231261269).

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

It is not an unprimeable number, because it can be changed into a prime (231261263) 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, 345866 + ... + 346533.

It is an arithmetic number, because the mean of its divisors is an integer number (43621200).

Almost surely, 2^231261266 is an apocalyptic number.

231261266 is a deficient number, since it is larger than the sum of its proper divisors (117708334).

231261266 is a wasteful number, since it uses less digits than its factorization.

231261266 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 692568.

The product of its digits is 5184, while the sum is 29.

The square root of 231261266 is about 15207.2767450323. The cubic root of 231261266 is about 613.8104806122.

The spelling of 231261266 in words is "two hundred thirty-one million, two hundred sixty-one thousand, two hundred sixty-six".