1216132162 has 64 divisors (see below), whose sum is σ = 2269347840. Its totient is φ = 476985600.

The previous prime is 1216132157. The next prime is 1216132193. The reversal of 1216132162 is 2612316121.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1334487 + ... + 1335397.

It is an arithmetic number, because the mean of its divisors is an integer number (35458560).

Almost surely, 2^1216132162 is an apocalyptic number.

1216132162 is a deficient number, since it is larger than the sum of its proper divisors (1053215678).

1216132162 is a wasteful number, since it uses less digits than its factorization.

1216132162 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1087.

The product of its digits is 864, while the sum is 25.

The square root of 1216132162 is about 34873.0864994769. The cubic root of 1216132162 is about 1067.3993270900.

Adding to 1216132162 its reverse (2612316121), we get a palindrome (3828448283).

The spelling of 1216132162 in words is "one billion, two hundred sixteen million, one hundred thirty-two thousand, one hundred sixty-two".