213512941 has 4 divisors (see below), whose sum is σ = 213687900. Its totient is φ = 213337984.

The previous prime is 213512939. The next prime is 213512947. The reversal of 213512941 is 149215312.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 126090441 + 87422500 = 11229^2 + 9350^2 .

It is a cyclic number.

It is not a de Polignac number, because 213512941 - 2¹ = 213512939 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 (213512947) 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, 85636 + ... + 88093.

It is an arithmetic number, because the mean of its divisors is an integer number (53421975).

Almost surely, 2^213512941 is an apocalyptic number.

It is an amenable number.

213512941 is a deficient number, since it is larger than the sum of its proper divisors (174959).

213512941 is a wasteful number, since it uses less digits than its factorization.

213512941 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 174958.

The product of its digits is 2160, while the sum is 28.

The square root of 213512941 is about 14612.0820213959. The cubic root of 213512941 is about 597.6882722227.

The spelling of 213512941 in words is "two hundred thirteen million, five hundred twelve thousand, nine hundred forty-one".