2167530745 has 4 divisors (see below), whose sum is σ = 2601036900. Its totient is φ = 1734024592.

The previous prime is 2167530733. The next prime is 2167530749. The reversal of 2167530745 is 5470357612.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 687435961 + 1480094784 = 26219^2 + 38472^2 .

It is a cyclic number.

It is not a de Polignac number, because 2167530745 - 2²⁷ = 2033313017 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 2167530698 and 2167530707.

It is not an unprimeable number, because it can be changed into a prime (2167530749) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 216753070 + ... + 216753079.

It is an arithmetic number, because the mean of its divisors is an integer number (650259225).

Almost surely, 2^2167530745 is an apocalyptic number.

It is an amenable number.

2167530745 is a deficient number, since it is larger than the sum of its proper divisors (433506155).

2167530745 is an equidigital number, since it uses as much as digits as its factorization.

2167530745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 433506154.

The product of its (nonzero) digits is 176400, while the sum is 40.

The square root of 2167530745 is about 46556.7475775531. The cubic root of 2167530745 is about 1294.1613398870.

The spelling of 2167530745 in words is "two billion, one hundred sixty-seven million, five hundred thirty thousand, seven hundred forty-five".