3133536421 has 4 divisors (see below), whose sum is σ = 3135935232. Its totient is φ = 3131137612.

The previous prime is 3133536359. The next prime is 3133536481. The reversal of 3133536421 is 1246353313.

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 3133536421 - 2⁷ = 3133536293 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 (3133536481) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1197445 + ... + 1200058.

It is an arithmetic number, because the mean of its divisors is an integer number (783983808).

Almost surely, 2^3133536421 is an apocalyptic number.

It is an amenable number.

3133536421 is a deficient number, since it is larger than the sum of its proper divisors (2398811).

3133536421 is a wasteful number, since it uses less digits than its factorization.

3133536421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2398810.

The product of its digits is 19440, while the sum is 31.

The square root of 3133536421 is about 55977.9994372789. Note that the first 3 decimals coincide. The cubic root of 3133536421 is about 1463.3388932610.

Adding to 3133536421 its reverse (1246353313), we get a palindrome (4379889734).

The spelling of 3133536421 in words is "three billion, one hundred thirty-three million, five hundred thirty-six thousand, four hundred twenty-one".