74011121 has 2 divisors, whose sum is σ = 74011122. Its totient is φ = 74011120.

The previous prime is 74011057. The next prime is 74011129. The reversal of 74011121 is 12111047.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 72931600 + 1079521 = 8540^2 + 1039^2 .

It is a cyclic number.

It is not a de Polignac number, because 74011121 - 2⁶ = 74011057 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 74011121.

It is not a weakly prime, because it can be changed into another prime (74011129) 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, 37005560 + 37005561.

It is an arithmetic number, because the mean of its divisors is an integer number (37005561).

Almost surely, 2^74011121 is an apocalyptic number.

It is an amenable number.

74011121 is a deficient number, since it is larger than the sum of its proper divisors (1).

74011121 is an equidigital number, since it uses as much as digits as its factorization.

74011121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 56, while the sum is 17.

The square root of 74011121 is about 8602.9716377540. The cubic root of 74011121 is about 419.8546757236.

Adding to 74011121 its reverse (12111047), we get a palindrome (86122168).

The spelling of 74011121 in words is "seventy-four million, eleven thousand, one hundred twenty-one".