3570145021 has 16 divisors (see below), whose sum is σ = 3742200000. Its totient is φ = 3401512576.

The previous prime is 3570145013. The next prime is 3570145091. The reversal of 3570145021 is 1205410753.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 3570145021 - 2³ = 3570145013 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 (3570145001) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1699830 + ... + 1701928.

It is an arithmetic number, because the mean of its divisors is an integer number (233887500).

Almost surely, 2^3570145021 is an apocalyptic number.

It is an amenable number.

3570145021 is a deficient number, since it is larger than the sum of its proper divisors (172054979).

3570145021 is a wasteful number, since it uses less digits than its factorization.

3570145021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2876.

The product of its (nonzero) digits is 4200, while the sum is 28.

The square root of 3570145021 is about 59750.6905483108. The cubic root of 3570145021 is about 1528.3704040043.

Adding to 3570145021 its reverse (1205410753), we get a palindrome (4775555774).

The spelling of 3570145021 in words is "three billion, five hundred seventy million, one hundred forty-five thousand, twenty-one".