1214216629 has 2 divisors, whose sum is σ = 1214216630. Its totient is φ = 1214216628.

The previous prime is 1214216617. The next prime is 1214216657. The reversal of 1214216629 is 9266124121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1079122500 + 135094129 = 32850^2 + 11623^2 .

It is a cyclic number.

It is not a de Polignac number, because 1214216629 - 2⁹ = 1214216117 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1214216594 and 1214216603.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1214213629) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 607108314 + 607108315.

It is an arithmetic number, because the mean of its divisors is an integer number (607108315).

Almost surely, 2^1214216629 is an apocalyptic number.

It is an amenable number.

1214216629 is a deficient number, since it is larger than the sum of its proper divisors (1).

1214216629 is an equidigital number, since it uses as much as digits as its factorization.

1214216629 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10368, while the sum is 34.

The square root of 1214216629 is about 34845.6113305535. The cubic root of 1214216629 is about 1066.8386114198.

The spelling of 1214216629 in words is "one billion, two hundred fourteen million, two hundred sixteen thousand, six hundred twenty-nine".