213472503 has 20 divisors (see below), whose sum is σ = 320287968. Its totient is φ = 141691680.

The previous prime is 213472433. The next prime is 213472531. The reversal of 213472503 is 305274312.

It is not a de Polignac number, because 213472503 - 2⁹ = 213471991 is a prime.

It is a Smith number, since the sum of its digits (27) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213472403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 13218 + ... + 24528.

Almost surely, 2^213472503 is an apocalyptic number.

213472503 is a deficient number, since it is larger than the sum of its proper divisors (106815465).

213472503 is a wasteful number, since it uses less digits than its factorization.

213472503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11556 (or 11547 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 27.

The square root of 213472503 is about 14610.6982379351. The cubic root of 213472503 is about 597.6505370480.

The spelling of 213472503 in words is "two hundred thirteen million, four hundred seventy-two thousand, five hundred three".