2150203857 has 4 divisors (see below), whose sum is σ = 2866938480. Its totient is φ = 1433469236.

The previous prime is 2150203813. The next prime is 2150203859. The reversal of 2150203857 is 7583020512.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2150203857 - 2⁶ = 2150203793 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2150203859) 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, 358367307 + ... + 358367312.

It is an arithmetic number, because the mean of its divisors is an integer number (716734620).

Almost surely, 2^2150203857 is an apocalyptic number.

It is an amenable number.

2150203857 is a deficient number, since it is larger than the sum of its proper divisors (716734623).

2150203857 is an equidigital number, since it uses as much as digits as its factorization.

2150203857 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 716734622.

The product of its (nonzero) digits is 16800, while the sum is 33.

The square root of 2150203857 is about 46370.2906719378. The cubic root of 2150203857 is about 1290.7036717357.

The spelling of 2150203857 in words is "two billion, one hundred fifty million, two hundred three thousand, eight hundred fifty-seven".