3143445021 has 12 divisors (see below), whose sum is σ = 4546652448. Its totient is φ = 2092805064.

The previous prime is 3143445017. The next prime is 3143445073. The reversal of 3143445021 is 1205443413.

It is a happy number.

3143445021 is a `hidden beast` number, since 314 + 344 + 5 + 0 + 2 + 1 = 666.

It is not a de Polignac number, because 3143445021 - 2² = 3143445017 is a prime.

It is a super-3 number, since 3×3143445021³ (a number of 29 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3143445091) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 228355 + ... + 241728.

It is an arithmetic number, because the mean of its divisors is an integer number (378887704).

Almost surely, 2^3143445021 is an apocalyptic number.

It is an amenable number.

3143445021 is a deficient number, since it is larger than the sum of its proper divisors (1403207427).

3143445021 is a wasteful number, since it uses less digits than its factorization.

3143445021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 470832 (or 470829 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

The square root of 3143445021 is about 56066.4339957519. The cubic root of 3143445021 is about 1464.8796852429.

Adding to 3143445021 its reverse (1205443413), we get a palindrome (4348888434).

The spelling of 3143445021 in words is "three billion, one hundred forty-three million, four hundred forty-five thousand, twenty-one".