73510121 has 2 divisors, whose sum is σ = 73510122. Its totient is φ = 73510120.

The previous prime is 73510103. The next prime is 73510127. The reversal of 73510121 is 12101537.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 62980096 + 10530025 = 7936^2 + 3245^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-73510121 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 73510093 and 73510102.

It is not a weakly prime, because it can be changed into another prime (73510127) 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, 36755060 + 36755061.

It is an arithmetic number, because the mean of its divisors is an integer number (36755061).

Almost surely, 2^73510121 is an apocalyptic number.

It is an amenable number.

73510121 is a deficient number, since it is larger than the sum of its proper divisors (1).

73510121 is an equidigital number, since it uses as much as digits as its factorization.

73510121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 210, while the sum is 20.

The square root of 73510121 is about 8573.8043481292. The cubic root of 73510121 is about 418.9051624890.

Adding to 73510121 its reverse (12101537), we get a palindrome (85611658).

The spelling of 73510121 in words is "seventy-three million, five hundred ten thousand, one hundred twenty-one".