1214442631 has 2 divisors, whose sum is σ = 1214442632. Its totient is φ = 1214442630.

The previous prime is 1214442623. The next prime is 1214442643. The reversal of 1214442631 is 1362444121.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1214442631 - 2³ = 1214442623 is a prime.

It is a super-2 number, since 2×1214442631² = 2949741807980404322, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1214442631.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1214446631) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 607221315 + 607221316.

It is an arithmetic number, because the mean of its divisors is an integer number (607221316).

Almost surely, 2^1214442631 is an apocalyptic number.

1214442631 is a deficient number, since it is larger than the sum of its proper divisors (1).

1214442631 is an equidigital number, since it uses as much as digits as its factorization.

1214442631 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4608, while the sum is 28.

The square root of 1214442631 is about 34848.8540844602. The cubic root of 1214442631 is about 1066.9047974958.

Adding to 1214442631 its reverse (1362444121), we get a palindrome (2576886752).

The spelling of 1214442631 in words is "one billion, two hundred fourteen million, four hundred forty-two thousand, six hundred thirty-one".