1840752145 has 4 divisors (see below), whose sum is σ = 2208902580. Its totient is φ = 1472601712.

The previous prime is 1840752143. The next prime is 1840752161. The reversal of 1840752145 is 5412570481.

1840752145 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

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 386397649 + 1454354496 = 19657^2 + 38136^2 .

It is a cyclic number.

It is not a de Polignac number, because 1840752145 - 2¹ = 1840752143 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1840752143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 184075210 + ... + 184075219.

It is an arithmetic number, because the mean of its divisors is an integer number (552225645).

Almost surely, 2^1840752145 is an apocalyptic number.

It is an amenable number.

1840752145 is a deficient number, since it is larger than the sum of its proper divisors (368150435).

1840752145 is an equidigital number, since it uses as much as digits as its factorization.

1840752145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 368150434.

The product of its (nonzero) digits is 44800, while the sum is 37.

The square root of 1840752145 is about 42903.9875186445. The cubic root of 1840752145 is about 1225.5520810142.

The spelling of 1840752145 in words is "one billion, eight hundred forty million, seven hundred fifty-two thousand, one hundred forty-five".