1012731217 has 8 divisors (see below), whose sum is σ = 1070733600. Its totient is φ = 955198944.

The previous prime is 1012731131. The next prime is 1012731229. The reversal of 1012731217 is 7121372101.

1012731217 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 a cyclic number.

It is not a de Polignac number, because 1012731217 - 2¹⁹ = 1012206929 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1012731191 and 1012731200.

It is not an unprimeable number, because it can be changed into a prime (1012731017) 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, 113092 + ... + 121717.

It is an arithmetic number, because the mean of its divisors is an integer number (133841700).

Almost surely, 2^1012731217 is an apocalyptic number.

It is an amenable number.

1012731217 is a deficient number, since it is larger than the sum of its proper divisors (58002383).

1012731217 is a wasteful number, since it uses less digits than its factorization.

1012731217 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 235055.

The product of its (nonzero) digits is 588, while the sum is 25.

The square root of 1012731217 is about 31823.4381706314. The cubic root of 1012731217 is about 1004.2258559863.

The spelling of 1012731217 in words is "one billion, twelve million, seven hundred thirty-one thousand, two hundred seventeen".