231446649 has 12 divisors (see below), whose sum is σ = 358978704. Its totient is φ = 132255144.

The previous prime is 231446647. The next prime is 231446689. The reversal of 231446649 is 946644132.

It is not a de Polignac number, because 231446649 - 2¹ = 231446647 is a prime.

It is not an unprimeable number, because it can be changed into a prime (231446641) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 787087 + ... + 787380.

It is an arithmetic number, because the mean of its divisors is an integer number (29914892).

Almost surely, 2^231446649 is an apocalyptic number.

It is an amenable number.

231446649 is a deficient number, since it is larger than the sum of its proper divisors (127532055).

231446649 is a wasteful number, since it uses less digits than its factorization.

231446649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1574484 (or 1574477 counting only the distinct ones).

The product of its digits is 124416, while the sum is 39.

The square root of 231446649 is about 15213.3707310379. The cubic root of 231446649 is about 613.9744504783.

The spelling of 231446649 in words is "two hundred thirty-one million, four hundred forty-six thousand, six hundred forty-nine".