1031450216 has 8 divisors (see below), whose sum is σ = 1933969170. Its totient is φ = 515725104.

The previous prime is 1031450209. The next prime is 1031450239. The reversal of 1031450216 is 6120541301.

It can be written as a sum of positive squares in only one way, i.e., 825412900 + 206037316 = 28730^2 + 14354^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 1031450191 and 1031450200.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64465631 + ... + 64465646.

Almost surely, 2^1031450216 is an apocalyptic number.

It is an amenable number.

1031450216 is a deficient number, since it is larger than the sum of its proper divisors (902518954).

1031450216 is a wasteful number, since it uses less digits than its factorization.

1031450216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128931283 (or 128931279 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 1031450216 is about 32116.1986542617. The cubic root of 1031450216 is about 1010.3753844327.

Adding to 1031450216 its reverse (6120541301), we get a palindrome (7151991517).

The spelling of 1031450216 in words is "one billion, thirty-one million, four hundred fifty thousand, two hundred sixteen".