213241603 has 4 divisors (see below), whose sum is σ = 215353008. Its totient is φ = 211130200.

The previous prime is 213241583. The next prime is 213241607. The reversal of 213241603 is 306142312.

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

It is a cyclic number.

It is not a de Polignac number, because 213241603 - 2⁵ = 213241571 is a prime.

It is not an unprimeable number, because it can be changed into a prime (213241607) 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, 1055551 + ... + 1055752.

It is an arithmetic number, because the mean of its divisors is an integer number (53838252).

Almost surely, 2^213241603 is an apocalyptic number.

213241603 is a deficient number, since it is larger than the sum of its proper divisors (2111405).

213241603 is a wasteful number, since it uses less digits than its factorization.

213241603 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2111404.

The product of its (nonzero) digits is 864, while the sum is 22.

The square root of 213241603 is about 14602.7943558759. The cubic root of 213241603 is about 597.4349787733.

Adding to 213241603 its reverse (306142312), we get a palindrome (519383915).

The spelling of 213241603 in words is "two hundred thirteen million, two hundred forty-one thousand, six hundred three".