1052121071 has 4 divisors (see below), whose sum is σ = 1052425944. Its totient is φ = 1051816200.

The previous prime is 1052121061. The next prime is 1052121113. The reversal of 1052121071 is 1701212501.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1052121071 - 2²⁶ = 985012207 is a prime.

It is a super-2 number, since 2×1052121071² = 2213917496084374082, 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 (1052121061) 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, 147200 + ... + 154181.

It is an arithmetic number, because the mean of its divisors is an integer number (263106486).

Almost surely, 2^1052121071 is an apocalyptic number.

1052121071 is a deficient number, since it is larger than the sum of its proper divisors (304873).

1052121071 is an equidigital number, since it uses as much as digits as its factorization.

1052121071 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 304872.

The product of its (nonzero) digits is 140, while the sum is 20.

The square root of 1052121071 is about 32436.4158161780. The cubic root of 1052121071 is about 1017.0802929451.

Adding to 1052121071 its reverse (1701212501), we get a palindrome (2753333572).

The spelling of 1052121071 in words is "one billion, fifty-two million, one hundred twenty-one thousand, seventy-one".