67260121 has 2 divisors, whose sum is σ = 67260122. Its totient is φ = 67260120.

The previous prime is 67260107. The next prime is 67260139. The reversal of 67260121 is 12106276.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 51768025 + 15492096 = 7195^2 + 3936^2 .

It is a cyclic number.

It is not a de Polignac number, because 67260121 - 2⁹ = 67259609 is a prime.

It is not a weakly prime, because it can be changed into another prime (67260181) 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, 33630060 + 33630061.

It is an arithmetic number, because the mean of its divisors is an integer number (33630061).

Almost surely, 2^67260121 is an apocalyptic number.

It is an amenable number.

67260121 is a deficient number, since it is larger than the sum of its proper divisors (1).

67260121 is an equidigital number, since it uses as much as digits as its factorization.

67260121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1008, while the sum is 25.

The square root of 67260121 is about 8201.2267984735. The cubic root of 67260121 is about 406.6797501688.

Adding to 67260121 its reverse (12106276), we get a palindrome (79366397).

The spelling of 67260121 in words is "sixty-seven million, two hundred sixty thousand, one hundred twenty-one".