1353221052 has 24 divisors (see below), whose sum is σ = 3259372032. Its totient is φ = 436522800.

The previous prime is 1353221033. The next prime is 1353221087. The reversal of 1353221052 is 2501223531.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1818474 + ... + 1819217.

It is an arithmetic number, because the mean of its divisors is an integer number (135807168).

Almost surely, 2^1353221052 is an apocalyptic number.

1353221052 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1353221052 is an abundant number, since it is smaller than the sum of its proper divisors (1906150980).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1353221052 is a wasteful number, since it uses less digits than its factorization.

1353221052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3637729 (or 3637727 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 24.

The square root of 1353221052 is about 36786.1529926683. The cubic root of 1353221052 is about 1106.0877482491.

Adding to 1353221052 its reverse (2501223531), we get a palindrome (3854444583).

The spelling of 1353221052 in words is "one billion, three hundred fifty-three million, two hundred twenty-one thousand, fifty-two".