1331541413 has 4 divisors (see below), whose sum is σ = 1401622560. Its totient is φ = 1261460268.

The previous prime is 1331541401. The next prime is 1331541433. The reversal of 1331541413 is 3141451331.

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 a cyclic number.

It is not a de Polignac number, because 1331541413 - 2⁸ = 1331541157 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1331541433) 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 3 ways as a sum of consecutive naturals, for example, 35040545 + ... + 35040582.

It is an arithmetic number, because the mean of its divisors is an integer number (350405640).

Almost surely, 2^1331541413 is an apocalyptic number.

It is an amenable number.

1331541413 is a deficient number, since it is larger than the sum of its proper divisors (70081147).

1331541413 is an equidigital number, since it uses as much as digits as its factorization.

1331541413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70081146.

The product of its digits is 2160, while the sum is 26.

The square root of 1331541413 is about 36490.2920377461. The cubic root of 1331541413 is about 1100.1491293681.

Adding to 1331541413 its reverse (3141451331), we get a palindrome (4472992744).

The spelling of 1331541413 in words is "one billion, three hundred thirty-one million, five hundred forty-one thousand, four hundred thirteen".