1214402069 has 2 divisors, whose sum is σ = 1214402070. Its totient is φ = 1214402068.

The previous prime is 1214402039. The next prime is 1214402129. The reversal of 1214402069 is 9602044121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 903303025 + 311099044 = 30055^2 + 17638^2 .

It is an emirp because it is prime and its reverse (9602044121) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1214402069 - 2¹² = 1214397973 is a prime.

It is a super-2 number, since 2×1214402069² = 2949544770382961522, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1214402009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 607201034 + 607201035.

It is an arithmetic number, because the mean of its divisors is an integer number (607201035).

Almost surely, 2^1214402069 is an apocalyptic number.

It is an amenable number.

1214402069 is a deficient number, since it is larger than the sum of its proper divisors (1).

1214402069 is an equidigital number, since it uses as much as digits as its factorization.

1214402069 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3456, while the sum is 29.

The square root of 1214402069 is about 34848.2721092452. The cubic root of 1214402069 is about 1066.8929192692.

The spelling of 1214402069 in words is "one billion, two hundred fourteen million, four hundred two thousand, sixty-nine".