1052145409 has 8 divisors (see below), whose sum is σ = 1202931648. Its totient is φ = 901479120.

The previous prime is 1052145389. The next prime is 1052145427. The reversal of 1052145409 is 9045412501.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1052145409 - 2¹⁹ = 1051621121 is a prime.

It is a super-2 number, since 2×1052145409² = 2214019923359554562, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1052145109) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10327 + ... + 47020.

It is an arithmetic number, because the mean of its divisors is an integer number (150366456).

Almost surely, 2^1052145409 is an apocalyptic number.

It is an amenable number.

1052145409 is a deficient number, since it is larger than the sum of its proper divisors (150786239).

1052145409 is an equidigital number, since it uses as much as digits as its factorization.

1052145409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59975.

The product of its (nonzero) digits is 7200, while the sum is 31.

The square root of 1052145409 is about 32436.7909787636. The cubic root of 1052145409 is about 1017.0881353599.

The spelling of 1052145409 in words is "one billion, fifty-two million, one hundred forty-five thousand, four hundred nine".