1305532216 has 16 divisors (see below), whose sum is σ = 2451498840. Its totient is φ = 651799200.

The previous prime is 1305532211. The next prime is 1305532229. The reversal of 1305532216 is 6122355031.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1305532211) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 115110 + ... + 125941.

Almost surely, 2^1305532216 is an apocalyptic number.

It is an amenable number.

1305532216 is a deficient number, since it is larger than the sum of its proper divisors (1145966624).

1305532216 is a wasteful number, since it uses less digits than its factorization.

1305532216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 241734 (or 241730 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 28.

The square root of 1305532216 is about 36132.1493409955. The cubic root of 1305532216 is about 1092.9388514226.

Adding to 1305532216 its reverse (6122355031), we get a palindrome (7427887247).

The spelling of 1305532216 in words is "one billion, three hundred five million, five hundred thirty-two thousand, two hundred sixteen".