1850675213 has 4 divisors (see below), whose sum is σ = 1900693500. Its totient is φ = 1800656928.

The previous prime is 1850675173. The next prime is 1850675257. The reversal of 1850675213 is 3125760581.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3125760581 = 67 ⋅46653143.

It can be written as a sum of positive squares in 2 ways, for example, as 1200068164 + 650607049 = 34642^2 + 25507^2 .

It is a cyclic number.

It is not a de Polignac number, because 1850675213 - 2¹⁸ = 1850413069 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1850695213) 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, 25009088 + ... + 25009161.

It is an arithmetic number, because the mean of its divisors is an integer number (475173375).

Almost surely, 2^1850675213 is an apocalyptic number.

It is an amenable number.

1850675213 is a deficient number, since it is larger than the sum of its proper divisors (50018287).

1850675213 is an equidigital number, since it uses as much as digits as its factorization.

1850675213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50018286.

The product of its (nonzero) digits is 50400, while the sum is 38.

The square root of 1850675213 is about 43019.4748108342. The cubic root of 1850675213 is about 1227.7503579668.

The spelling of 1850675213 in words is "one billion, eight hundred fifty million, six hundred seventy-five thousand, two hundred thirteen".