73664141 has 2 divisors, whose sum is σ = 73664142. Its totient is φ = 73664140.

The previous prime is 73664137. The next prime is 73664161. The reversal of 73664141 is 14146637.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 57229225 + 16434916 = 7565^2 + 4054^2 .

It is a cyclic number.

It is not a de Polignac number, because 73664141 - 2² = 73664137 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 73664098 and 73664107.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (73664161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36832070 + 36832071.

It is an arithmetic number, because the mean of its divisors is an integer number (36832071).

Almost surely, 2^73664141 is an apocalyptic number.

It is an amenable number.

73664141 is a deficient number, since it is larger than the sum of its proper divisors (1).

73664141 is an equidigital number, since it uses as much as digits as its factorization.

73664141 is an evil number, because the sum of its binary digits is even.

The product of its digits is 12096, while the sum is 32.

The square root of 73664141 is about 8582.7816586466. The cubic root of 73664141 is about 419.1975247903.

The spelling of 73664141 in words is "seventy-three million, six hundred sixty-four thousand, one hundred forty-one".