3144131521 has 8 divisors (see below), whose sum is σ = 3330599904. Its totient is φ = 2957832000.

The previous prime is 3144131461. The next prime is 3144131531. The reversal of 3144131521 is 1251314413.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 3144131521 - 2²¹ = 3142034369 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3144131531) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2815 + ... + 79348.

It is an arithmetic number, because the mean of its divisors is an integer number (416324988).

Almost surely, 2^3144131521 is an apocalyptic number.

It is an amenable number.

3144131521 is a deficient number, since it is larger than the sum of its proper divisors (186468383).

3144131521 is a wasteful number, since it uses less digits than its factorization.

3144131521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84431.

The product of its digits is 1440, while the sum is 25.

The square root of 3144131521 is about 56072.5558629175. Note that the first 3 decimals coincide. The cubic root of 3144131521 is about 1464.9863163115.

Adding to 3144131521 its reverse (1251314413), we get a palindrome (4395445934).

The spelling of 3144131521 in words is "three billion, one hundred forty-four million, one hundred thirty-one thousand, five hundred twenty-one".