1052445545 has 4 divisors (see below), whose sum is σ = 1262934660. Its totient is φ = 841956432.

The previous prime is 1052445517. The next prime is 1052445593. The reversal of 1052445545 is 5455442501.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5455442501 = 22871 ⋅238531.

It can be written as a sum of positive squares in 2 ways, for example, as 818875456 + 233570089 = 28616^2 + 15283^2 .

It is a cyclic number.

It is not a de Polignac number, because 1052445545 - 2²⁸ = 784010089 is a prime.

It is a super-2 number, since 2×1052445545² = 2215283250380694050, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 105244550 + ... + 105244559.

It is an arithmetic number, because the mean of its divisors is an integer number (315733665).

Almost surely, 2^1052445545 is an apocalyptic number.

It is an amenable number.

1052445545 is a deficient number, since it is larger than the sum of its proper divisors (210489115).

1052445545 is an equidigital number, since it uses as much as digits as its factorization.

1052445545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 210489114.

The product of its (nonzero) digits is 80000, while the sum is 35.

The square root of 1052445545 is about 32441.4171237941. The cubic root of 1052445545 is about 1017.1848380082.

The spelling of 1052445545 in words is "one billion, fifty-two million, four hundred forty-five thousand, five hundred forty-five".