1214657 has 2 divisors, whose sum is σ = 1214658. Its totient is φ = 1214656.

The previous prime is 1214641. The next prime is 1214659. The reversal of 1214657 is 7564121.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1175056 + 39601 = 1084^2 + 199^2 .

It is a cyclic number.

It is not a de Polignac number, because 1214657 - 2⁴ = 1214641 is a prime.

Together with 1214659, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1214659) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 607328 + 607329.

It is an arithmetic number, because the mean of its divisors is an integer number (607329).

2^1214657 is an apocalyptic number.

It is an amenable number.

1214657 is a deficient number, since it is larger than the sum of its proper divisors (1).

1214657 is an equidigital number, since it uses as much as digits as its factorization.

1214657 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1680, while the sum is 26.

The square root of 1214657 is about 1102.1147853105. The cubic root of 1214657 is about 106.6967569188.

Adding to 1214657 its reverse (7564121), we get a palindrome (8778778).

The spelling of 1214657 in words is "one million, two hundred fourteen thousand, six hundred fifty-seven".