1050057213 has 4 divisors (see below), whose sum is σ = 1400076288. Its totient is φ = 700038140.

The previous prime is 1050057199. The next prime is 1050057251. The reversal of 1050057213 is 3127500501.

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, and also an emirpimes, since its reverse is a distinct semiprime: 3127500501 = 3 ⋅1042500167.

It is a cyclic number.

It is not a de Polignac number, because 1050057213 - 2⁵ = 1050057181 is a prime.

It is a super-2 number, since 2×1050057213² = 2205240301146654738, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1050057263) 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, 175009533 + ... + 175009538.

It is an arithmetic number, because the mean of its divisors is an integer number (350019072).

Almost surely, 2^1050057213 is an apocalyptic number.

It is an amenable number.

1050057213 is a deficient number, since it is larger than the sum of its proper divisors (350019075).

1050057213 is an equidigital number, since it uses as much as digits as its factorization.

1050057213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 350019074.

The product of its (nonzero) digits is 1050, while the sum is 24.

The square root of 1050057213 is about 32404.5862957699. The cubic root of 1050057213 is about 1016.4148171414.

Adding to 1050057213 its reverse (3127500501), we get a palindrome (4177557714).

The spelling of 1050057213 in words is "one billion, fifty million, fifty-seven thousand, two hundred thirteen".