264145073 has 2 divisors, whose sum is σ = 264145074. Its totient is φ = 264145072.

The previous prime is 264145039. The next prime is 264145103. The reversal of 264145073 is 370541462.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 251127409 + 13017664 = 15847^2 + 3608^2 .

It is a cyclic number.

It is not a de Polignac number, because 264145073 - 2⁶ = 264145009 is a prime.

It is equal to p_14409626 and since 264145073 and 14409626 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (264145003) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 132072536 + 132072537.

It is an arithmetic number, because the mean of its divisors is an integer number (132072537).

Almost surely, 2^264145073 is an apocalyptic number.

It is an amenable number.

264145073 is a deficient number, since it is larger than the sum of its proper divisors (1).

264145073 is an equidigital number, since it uses as much as digits as its factorization.

264145073 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20160, while the sum is 32.

The square root of 264145073 is about 16252.5405091020. The cubic root of 264145073 is about 641.6243512059.

The spelling of 264145073 in words is "two hundred sixty-four million, one hundred forty-five thousand, seventy-three".