731143216 has 10 divisors (see below), whose sum is σ = 1416590012. Its totient is φ = 365571600.

The previous prime is 731143213. The next prime is 731143219. The reversal of 731143216 is 612341137.

It is an interprime number because it is at equal distance from previous prime (731143213) and next prime (731143219).

It is not an unprimeable number, because it can be changed into a prime (731143213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22848210 + ... + 22848241.

Almost surely, 2^731143216 is an apocalyptic number.

It is an amenable number.

731143216 is a deficient number, since it is larger than the sum of its proper divisors (685446796).

731143216 is a wasteful number, since it uses less digits than its factorization.

731143216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45696459 (or 45696453 counting only the distinct ones).

The product of its digits is 3024, while the sum is 28.

The square root of 731143216 is about 27039.6600570347. The cubic root of 731143216 is about 900.8811189774.

The spelling of 731143216 in words is "seven hundred thirty-one million, one hundred forty-three thousand, two hundred sixteen".