3133141721 has 8 divisors (see below), whose sum is σ = 3144323400. Its totient is φ = 3121977600.

The previous prime is 3133141691. The next prime is 3133141727. The reversal of 3133141721 is 1271413313.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 1269924496 + 1863217225 = 35636^2 + 43165^2 .

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 3133141721 - 2¹⁰ = 3133140697 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3133141727) 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, 425015 + ... + 432323.

It is an arithmetic number, because the mean of its divisors is an integer number (393040425).

Almost surely, 2^3133141721 is an apocalyptic number.

It is an amenable number.

3133141721 is a deficient number, since it is larger than the sum of its proper divisors (11181679).

3133141721 is a wasteful number, since it uses less digits than its factorization.

3133141721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8779.

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

The square root of 3133141721 is about 55974.4738340612. The cubic root of 3133141721 is about 1463.2774499973.

The spelling of 3133141721 in words is "three billion, one hundred thirty-three million, one hundred forty-one thousand, seven hundred twenty-one".