231064249 has 8 divisors (see below), whose sum is σ = 249092480. Its totient is φ = 213072336.

The previous prime is 231064243. The next prime is 231064261. The reversal of 231064249 is 942460132.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 231064249 - 2²¹ = 228967097 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 231064249.

It is not an unprimeable number, because it can be changed into a prime (231064243) 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, 4954 + ... + 22060.

It is an arithmetic number, because the mean of its divisors is an integer number (31136560).

Almost surely, 2^231064249 is an apocalyptic number.

It is an amenable number.

231064249 is a deficient number, since it is larger than the sum of its proper divisors (18028231).

231064249 is a wasteful number, since it uses less digits than its factorization.

231064249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18159.

The product of its (nonzero) digits is 10368, while the sum is 31.

The square root of 231064249 is about 15200.7976435449. The cubic root of 231064249 is about 613.6361244836.

The spelling of 231064249 in words is "two hundred thirty-one million, sixty-four thousand, two hundred forty-nine".