67214057 has 2 divisors, whose sum is σ = 67214058. Its totient is φ = 67214056.

The previous prime is 67214053. The next prime is 67214099. The reversal of 67214057 is 75041276.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 62267881 + 4946176 = 7891^2 + 2224^2 .

It is a cyclic number.

It is not a de Polignac number, because 67214057 - 2² = 67214053 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (67214051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33607028 + 33607029.

It is an arithmetic number, because the mean of its divisors is an integer number (33607029).

Almost surely, 2^67214057 is an apocalyptic number.

It is an amenable number.

67214057 is a deficient number, since it is larger than the sum of its proper divisors (1).

67214057 is an equidigital number, since it uses as much as digits as its factorization.

67214057 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11760, while the sum is 32.

The square root of 67214057 is about 8198.4179571427. The cubic root of 67214057 is about 406.5868889313.

The spelling of 67214057 in words is "sixty-seven million, two hundred fourteen thousand, fifty-seven".