3534143221 has 4 divisors (see below), whose sum is σ = 4039020832. Its totient is φ = 3029265612.

The previous prime is 3534143219. The next prime is 3534143227. The reversal of 3534143221 is 1223414353.

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.

It is a cyclic number.

It is not a de Polignac number, because 3534143221 - 2¹ = 3534143219 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 3534143221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3534143227) 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, 252438795 + ... + 252438808.

It is an arithmetic number, because the mean of its divisors is an integer number (1009755208).

Almost surely, 2^3534143221 is an apocalyptic number.

It is an amenable number.

3534143221 is a deficient number, since it is larger than the sum of its proper divisors (504877611).

3534143221 is an equidigital number, since it uses as much as digits as its factorization.

3534143221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 504877610.

The product of its digits is 8640, while the sum is 28.

The square root of 3534143221 is about 59448.6603801970. The cubic root of 3534143221 is about 1523.2156100926.

Adding to 3534143221 its reverse (1223414353), we get a palindrome (4757557574).

The spelling of 3534143221 in words is "three billion, five hundred thirty-four million, one hundred forty-three thousand, two hundred twenty-one".