213011641 has 16 divisors (see below), whose sum is σ = 234187200. Its totient is φ = 192967488.

The previous prime is 213011609. The next prime is 213011647. The reversal of 213011641 is 146110312.

213011641 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 213011641 - 2⁵ = 213011609 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (213011647) 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, 57151 + ... + 60763.

It is an arithmetic number, because the mean of its divisors is an integer number (14636700).

Almost surely, 2^213011641 is an apocalyptic number.

It is an amenable number.

213011641 is a deficient number, since it is larger than the sum of its proper divisors (21175559).

213011641 is a wasteful number, since it uses less digits than its factorization.

213011641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3768.

The product of its (nonzero) digits is 144, while the sum is 19.

The square root of 213011641 is about 14594.9183279661. The cubic root of 213011641 is about 597.2201414605.

Adding to 213011641 its reverse (146110312), we get a palindrome (359121953).

The spelling of 213011641 in words is "two hundred thirteen million, eleven thousand, six hundred forty-one".