1052145321 has 8 divisors (see below), whose sum is σ = 1437076704. Its totient is φ = 684322080.

The previous prime is 1052145319. The next prime is 1052145329. The reversal of 1052145321 is 1235412501.

It is a happy number.

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

It is not a de Polignac number, because 1052145321 - 2¹ = 1052145319 is a prime.

It is a super-2 number, since 2×1052145321² = 2214019553004386082, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1052145291 and 1052145300.

It is not an unprimeable number, because it can be changed into a prime (1052145329) 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 7 ways as a sum of consecutive naturals, for example, 4276891 + ... + 4277136.

It is an arithmetic number, because the mean of its divisors is an integer number (179634588).

Almost surely, 2^1052145321 is an apocalyptic number.

It is an amenable number.

1052145321 is a deficient number, since it is larger than the sum of its proper divisors (384931383).

1052145321 is an equidigital number, since it uses as much as digits as its factorization.

1052145321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8554071.

The product of its (nonzero) digits is 1200, while the sum is 24.

The square root of 1052145321 is about 32436.7896222792. The cubic root of 1052145321 is about 1017.0881070039.

Adding to 1052145321 its reverse (1235412501), we get a palindrome (2287557822).

The spelling of 1052145321 in words is "one billion, fifty-two million, one hundred forty-five thousand, three hundred twenty-one".