1322552231 has 32 divisors (see below), whose sum is σ = 1780036608. Its totient is φ = 948983040.

The previous prime is 1322552227. The next prime is 1322552251.

It is a happy number.

1322552231 is nontrivially palindromic in base 10.

It is a cyclic number.

It is not a de Polignac number, because 1322552231 - 2² = 1322552227 is a prime.

It is a super-2 number, since 2×1322552231² = 3498288807446154722, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1322552231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1322552251) 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 31 ways as a sum of consecutive naturals, for example, 486131 + ... + 488843.

It is an arithmetic number, because the mean of its divisors is an integer number (55626144).

Almost surely, 2^1322552231 is an apocalyptic number.

1322552231 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1322552231 is a deficient number, since it is larger than the sum of its proper divisors (457484377).

1322552231 is a wasteful number, since it uses less digits than its factorization.

1322552231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3231.

The product of its digits is 3600, while the sum is 26.

The square root of 1322552231 is about 36366.9112106046. The cubic root of 1322552231 is about 1097.6678499271.

It can be divided in two parts, 13225 and 52231, that added together give a palindrome (65456).

The spelling of 1322552231 in words is "one billion, three hundred twenty-two million, five hundred fifty-two thousand, two hundred thirty-one".