1214631223 has 8 divisors (see below), whose sum is σ = 1315806800. Its totient is φ = 1121196024.

The previous prime is 1214631203. The next prime is 1214631287. The reversal of 1214631223 is 3221364121.

It is a de Polignac number, because none of the positive numbers 2^k-1214631223 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1214631203) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 274233 + ... + 278626.

It is an arithmetic number, because the mean of its divisors is an integer number (164475850).

Almost surely, 2^1214631223 is an apocalyptic number.

1214631223 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1214631223 is a deficient number, since it is larger than the sum of its proper divisors (101175577).

1214631223 is an frugal number, since it uses more digits than its factorization.

1214631223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 552898 (or 552872 counting only the distinct ones).

The product of its digits is 1728, while the sum is 25.

The square root of 1214631223 is about 34851.5598359672. The cubic root of 1214631223 is about 1066.9600215385.

Adding to 1214631223 its reverse (3221364121), we get a palindrome (4435995344).

The spelling of 1214631223 in words is "one billion, two hundred fourteen million, six hundred thirty-one thousand, two hundred twenty-three".