7155067145 has 4 divisors (see below), whose sum is σ = 8586080580. Its totient is φ = 5724053712.

The previous prime is 7155067109. The next prime is 7155067147. The reversal of 7155067145 is 5417605517.

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 5130427129 + 2024640016 = 71627^2 + 44996^2 .

It is a cyclic number.

It is not a de Polignac number, because 7155067145 - 2²⁴ = 7138289929 is a prime.

It is not an unprimeable number, because it can be changed into a prime (7155067147) 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, 715506710 + ... + 715506719.

It is an arithmetic number, because the mean of its divisors is an integer number (2146520145).

Almost surely, 2^7155067145 is an apocalyptic number.

It is an amenable number.

7155067145 is a deficient number, since it is larger than the sum of its proper divisors (1431013435).

7155067145 is a wasteful number, since it uses less digits than its factorization.

7155067145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1431013434.

The product of its (nonzero) digits is 147000, while the sum is 41.

The square root of 7155067145 is about 84587.6299762560. The cubic root of 7155067145 is about 1926.9535142642.

The spelling of 7155067145 in words is "seven billion, one hundred fifty-five million, sixty-seven thousand, one hundred forty-five".