152180845 has 4 divisors (see below), whose sum is σ = 182617020. Its totient is φ = 121744672.

The previous prime is 152180839. The next prime is 152180849. The reversal of 152180845 is 548081251.

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 106564329 + 45616516 = 10323^2 + 6754^2 .

It is a cyclic number.

It is not a de Polignac number, because 152180845 - 2⁵ = 152180813 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 152180845.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (152180849) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15218080 + ... + 15218089.

It is an arithmetic number, because the mean of its divisors is an integer number (45654255).

Almost surely, 2^152180845 is an apocalyptic number.

It is an amenable number.

152180845 is a deficient number, since it is larger than the sum of its proper divisors (30436175).

152180845 is an equidigital number, since it uses as much as digits as its factorization.

152180845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30436174.

The product of its (nonzero) digits is 12800, while the sum is 34.

The square root of 152180845 is about 12336.1600589487. The cubic root of 152180845 is about 533.8918980958.

The spelling of 152180845 in words is "one hundred fifty-two million, one hundred eighty thousand, eight hundred forty-five".