1214350665 has 64 divisors (see below), whose sum is σ = 2219857920. Its totient is φ = 561116160.

The previous prime is 1214350661. The next prime is 1214350699. The reversal of 1214350665 is 5660534121.

It is not a de Polignac number, because 1214350665 - 2² = 1214350661 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (1214350661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1642866 + ... + 1643604.

It is an arithmetic number, because the mean of its divisors is an integer number (34685280).

Almost surely, 2^1214350665 is an apocalyptic number.

1214350665 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1214350665 is a deficient number, since it is larger than the sum of its proper divisors (1005507255).

1214350665 is a wasteful number, since it uses less digits than its factorization.

1214350665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1214.

The product of its (nonzero) digits is 21600, while the sum is 33.

The square root of 1214350665 is about 34847.5345612857. The cubic root of 1214350665 is about 1066.8778656779.

Adding to 1214350665 its reverse (5660534121), we get a palindrome (6874884786).

The spelling of 1214350665 in words is "one billion, two hundred fourteen million, three hundred fifty thousand, six hundred sixty-five".