67075121 has 2 divisors, whose sum is σ = 67075122. Its totient is φ = 67075120.

The previous prime is 67075109. The next prime is 67075147. The reversal of 67075121 is 12157076.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 63600625 + 3474496 = 7975^2 + 1864^2 .

It is a cyclic number.

It is not a de Polignac number, because 67075121 - 2¹⁴ = 67058737 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (67075171) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33537560 + 33537561.

It is an arithmetic number, because the mean of its divisors is an integer number (33537561).

Almost surely, 2^67075121 is an apocalyptic number.

It is an amenable number.

67075121 is a deficient number, since it is larger than the sum of its proper divisors (1).

67075121 is an equidigital number, since it uses as much as digits as its factorization.

67075121 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2940, while the sum is 29.

The square root of 67075121 is about 8189.9402317721. The cubic root of 67075121 is about 406.3065481521.

The spelling of 67075121 in words is "sixty-seven million, seventy-five thousand, one hundred twenty-one".