1331401413 has 4 divisors (see below), whose sum is σ = 1775201888. Its totient is φ = 887600940.

The previous prime is 1331401387. The next prime is 1331401417. The reversal of 1331401413 is 3141041331.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 1331401413 - 2¹³ = 1331393221 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1331401413.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1331401417) 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 3 ways as a sum of consecutive naturals, for example, 221900233 + ... + 221900238.

It is an arithmetic number, because the mean of its divisors is an integer number (443800472).

Almost surely, 2^1331401413 is an apocalyptic number.

It is an amenable number.

1331401413 is a deficient number, since it is larger than the sum of its proper divisors (443800475).

1331401413 is an equidigital number, since it uses as much as digits as its factorization.

1331401413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 443800474.

The product of its (nonzero) digits is 432, while the sum is 21.

The square root of 1331401413 is about 36488.3736688825. The cubic root of 1331401413 is about 1100.1105709788.

Adding to 1331401413 its reverse (3141041331), we get a palindrome (4472442744).

The spelling of 1331401413 in words is "one billion, three hundred thirty-one million, four hundred one thousand, four hundred thirteen".