73368121 has 2 divisors, whose sum is σ = 73368122. Its totient is φ = 73368120.

The previous prime is 73368067. The next prime is 73368133. The reversal of 73368121 is 12186337.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 71233600 + 2134521 = 8440^2 + 1461^2 .

It is a cyclic number.

It is not a de Polignac number, because 73368121 - 2¹³ = 73359929 is a prime.

It is not a weakly prime, because it can be changed into another prime (73368161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36684060 + 36684061.

It is an arithmetic number, because the mean of its divisors is an integer number (36684061).

Almost surely, 2^73368121 is an apocalyptic number.

It is an amenable number.

73368121 is a deficient number, since it is larger than the sum of its proper divisors (1).

73368121 is an equidigital number, since it uses as much as digits as its factorization.

73368121 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6048, while the sum is 31.

The square root of 73368121 is about 8565.5193070823. The cubic root of 73368121 is about 418.6352546376.

The spelling of 73368121 in words is "seventy-three million, three hundred sixty-eight thousand, one hundred twenty-one".