1850853145 has 4 divisors (see below), whose sum is σ = 2221023780. Its totient is φ = 1480682512.

The previous prime is 1850853143. The next prime is 1850853163. The reversal of 1850853145 is 5413580581.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5413580581 = 3931 ⋅1377151.

It can be written as a sum of positive squares in 2 ways, for example, as 199487376 + 1651365769 = 14124^2 + 40637^2 .

It is a cyclic number.

It is not a de Polignac number, because 1850853145 - 2¹ = 1850853143 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 = 1850853098 and 1850853107.

It is not an unprimeable number, because it can be changed into a prime (1850853143) 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, 185085310 + ... + 185085319.

It is an arithmetic number, because the mean of its divisors is an integer number (555255945).

Almost surely, 2^1850853145 is an apocalyptic number.

It is an amenable number.

1850853145 is a deficient number, since it is larger than the sum of its proper divisors (370170635).

1850853145 is an equidigital number, since it uses as much as digits as its factorization.

1850853145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 370170634.

The product of its (nonzero) digits is 96000, while the sum is 40.

The square root of 1850853145 is about 43021.5428012525. The cubic root of 1850853145 is about 1227.7897038002.

The spelling of 1850853145 in words is "one billion, eight hundred fifty million, eight hundred fifty-three thousand, one hundred forty-five".