1030215656 has 8 divisors (see below), whose sum is σ = 1931654370. Its totient is φ = 515107824.

The previous prime is 1030215649. The next prime is 1030215773. The reversal of 1030215656 is 6565120301.

It can be written as a sum of positive squares in only one way, i.e., 749116900 + 281098756 = 27370^2 + 16766^2 .

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

It is a super-2 number, since 2×1030215656² = 2122688595735020672, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64388471 + ... + 64388486.

Almost surely, 2^1030215656 is an apocalyptic number.

It is an amenable number.

1030215656 is a deficient number, since it is larger than the sum of its proper divisors (901438714).

1030215656 is a wasteful number, since it uses less digits than its factorization.

1030215656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128776963 (or 128776959 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 29.

The square root of 1030215656 is about 32096.9726921403. The cubic root of 1030215656 is about 1009.9721117679.

Adding to 1030215656 its reverse (6565120301), we get a palindrome (7595335957).

The spelling of 1030215656 in words is "one billion, thirty million, two hundred fifteen thousand, six hundred fifty-six".