1324521401 has 24 divisors (see below), whose sum is σ = 1630502784. Its totient is φ = 1070583360.

The previous prime is 1324521383. The next prime is 1324521439. The reversal of 1324521401 is 1041254231.

It is not a de Polignac number, because 1324521401 - 2¹⁰ = 1324520377 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1324521491) 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 23 ways as a sum of consecutive naturals, for example, 71741 + ... + 88293.

It is an arithmetic number, because the mean of its divisors is an integer number (67937616).

Almost surely, 2^1324521401 is an apocalyptic number.

It is an amenable number.

1324521401 is a deficient number, since it is larger than the sum of its proper divisors (305981383).

1324521401 is a wasteful number, since it uses less digits than its factorization.

1324521401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16661 (or 16654 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 23.

The square root of 1324521401 is about 36393.9747897918. The cubic root of 1324521401 is about 1098.2123584095.

Adding to 1324521401 its reverse (1041254231), we get a palindrome (2365775632).

The spelling of 1324521401 in words is "one billion, three hundred twenty-four million, five hundred twenty-one thousand, four hundred one".