1230565216 has 24 divisors (see below), whose sum is σ = 2428297704. Its totient is φ = 613854720.

The previous prime is 1230565211. The next prime is 1230565241. The reversal of 1230565216 is 6125650321.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1230565211) 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, 30550 + ... + 58261.

It is an arithmetic number, because the mean of its divisors is an integer number (101179071).

Almost surely, 2^1230565216 is an apocalyptic number.

1230565216 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1230565216 is a deficient number, since it is larger than the sum of its proper divisors (1197732488).

1230565216 is an equidigital number, since it uses as much as digits as its factorization.

1230565216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89254 (or 89246 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 31.

The square root of 1230565216 is about 35079.4129939485. The cubic root of 1230565216 is about 1071.6053626475.

The spelling of 1230565216 in words is "one billion, two hundred thirty million, five hundred sixty-five thousand, two hundred sixteen".