1052805641 has 4 divisors (see below), whose sum is σ = 1053166800. Its totient is φ = 1052444484.

The previous prime is 1052805619. The next prime is 1052805643. The reversal of 1052805641 is 1465082501.

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: 1465082501 = 67 ⋅21866903.

It is a cyclic number.

It is not a de Polignac number, because 1052805641 - 2⁶ = 1052805577 is a prime.

It is a super-2 number, since 2×1052805641² = 2216799435442841762, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1052805598 and 1052805607.

It is not an unprimeable number, because it can be changed into a prime (1052805643) 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, 176171 + ... + 182048.

It is an arithmetic number, because the mean of its divisors is an integer number (263291700).

Almost surely, 2^1052805641 is an apocalyptic number.

It is an amenable number.

1052805641 is a deficient number, since it is larger than the sum of its proper divisors (361159).

1052805641 is an equidigital number, since it uses as much as digits as its factorization.

1052805641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 361158.

The product of its (nonzero) digits is 9600, while the sum is 32.

The square root of 1052805641 is about 32446.9665916554. The cubic root of 1052805641 is about 1017.3008352764.

The spelling of 1052805641 in words is "one billion, fifty-two million, eight hundred five thousand, six hundred forty-one".