730167121 has 2 divisors, whose sum is σ = 730167122. Its totient is φ = 730167120.

The previous prime is 730167107. The next prime is 730167161. The reversal of 730167121 is 121761037.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 710489025 + 19678096 = 26655^2 + 4436^2 .

It is a cyclic number.

It is not a de Polignac number, because 730167121 - 2⁵ = 730167089 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 730167121.

It is not a weakly prime, because it can be changed into another prime (730167161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 365083560 + 365083561.

It is an arithmetic number, because the mean of its divisors is an integer number (365083561).

Almost surely, 2^730167121 is an apocalyptic number.

It is an amenable number.

730167121 is a deficient number, since it is larger than the sum of its proper divisors (1).

730167121 is an equidigital number, since it uses as much as digits as its factorization.

730167121 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1764, while the sum is 28.

The square root of 730167121 is about 27021.6047080850. The cubic root of 730167121 is about 900.4800406190.

The spelling of 730167121 in words is "seven hundred thirty million, one hundred sixty-seven thousand, one hundred twenty-one".