1214402549 has 2 divisors, whose sum is σ = 1214402550. Its totient is φ = 1214402548.

The previous prime is 1214402543. The next prime is 1214402561. The reversal of 1214402549 is 9452044121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 877936900 + 336465649 = 29630^2 + 18343^2 .

It is a cyclic number.

It is not a de Polignac number, because 1214402549 - 2⁴ = 1214402533 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1214402543) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 607201274 + 607201275.

It is an arithmetic number, because the mean of its divisors is an integer number (607201275).

Almost surely, 2^1214402549 is an apocalyptic number.

It is an amenable number.

1214402549 is a deficient number, since it is larger than the sum of its proper divisors (1).

1214402549 is an equidigital number, since it uses as much as digits as its factorization.

1214402549 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11520, while the sum is 32.

The square root of 1214402549 is about 34848.2789962431. The cubic root of 1214402549 is about 1066.8930598346.

The spelling of 1214402549 in words is "one billion, two hundred fourteen million, four hundred two thousand, five hundred forty-nine".