1052155213 has 4 divisors (see below), whose sum is σ = 1054457980. Its totient is φ = 1049852448.

The previous prime is 1052155193. The next prime is 1052155219. The reversal of 1052155213 is 3125512501.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3125512501 = 10831 ⋅288571.

It can be written as a sum of positive squares in 2 ways, for example, as 821510244 + 230644969 = 28662^2 + 15187^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1052155213 is a prime.

It is a super-2 number, since 2×1052155213² = 2214061184486150738, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1052155219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1150698 + ... + 1151611.

It is an arithmetic number, because the mean of its divisors is an integer number (263614495).

Almost surely, 2^1052155213 is an apocalyptic number.

It is an amenable number.

1052155213 is a deficient number, since it is larger than the sum of its proper divisors (2302767).

1052155213 is an equidigital number, since it uses as much as digits as its factorization.

1052155213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2302766.

The product of its (nonzero) digits is 1500, while the sum is 25.

The square root of 1052155213 is about 32436.9421031021. The cubic root of 1052155213 is about 1017.0912944609.

Adding to 1052155213 its reverse (3125512501), we get a palindrome (4177667714).

The spelling of 1052155213 in words is "one billion, fifty-two million, one hundred fifty-five thousand, two hundred thirteen".