3133171421 has 4 divisors (see below), whose sum is σ = 3298075200. Its totient is φ = 2968267644.

The previous prime is 3133171403. The next prime is 3133171427. The reversal of 3133171421 is 1241713313.

It is a happy number.

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, and also an emirpimes, since its reverse is a distinct semiprime: 1241713313 = 1279 ⋅970847.

It is a cyclic number.

It is not a de Polignac number, because 3133171421 - 2⁶ = 3133171357 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3133171427) 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, 82451861 + ... + 82451898.

It is an arithmetic number, because the mean of its divisors is an integer number (824518800).

Almost surely, 2^3133171421 is an apocalyptic number.

It is an amenable number.

3133171421 is a deficient number, since it is larger than the sum of its proper divisors (164903779).

3133171421 is a wasteful number, since it uses less digits than its factorization.

3133171421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 164903778.

The product of its digits is 1512, while the sum is 26.

The square root of 3133171421 is about 55974.7391329339. The cubic root of 3133171421 is about 1463.2820735995.

Adding to 3133171421 its reverse (1241713313), we get a palindrome (4374884734).

The spelling of 3133171421 in words is "three billion, one hundred thirty-three million, one hundred seventy-one thousand, four hundred twenty-one".