213135004 has 24 divisors (see below), whose sum is σ = 382491648. Its totient is φ = 103862640.

The previous prime is 213134993. The next prime is 213135011. The reversal of 213135004 is 400531312.

213135004 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 99909 + ... + 102019.

It is an arithmetic number, because the mean of its divisors is an integer number (15937152).

Almost surely, 2^213135004 is an apocalyptic number.

It is an amenable number.

213135004 is a deficient number, since it is larger than the sum of its proper divisors (169356644).

213135004 is a wasteful number, since it uses less digits than its factorization.

213135004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2745 (or 2743 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 19.

The square root of 213135004 is about 14599.1439475060. The cubic root of 213135004 is about 597.3354100438.

Adding to 213135004 its reverse (400531312), we get a palindrome (613666316).

The spelling of 213135004 in words is "two hundred thirteen million, one hundred thirty-five thousand, four".