213267403 has 4 divisors (see below), whose sum is σ = 213326608. Its totient is φ = 213208200.

The previous prime is 213267391. The next prime is 213267409. The reversal of 213267403 is 304762312.

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 213267403 - 2⁹ = 213266891 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (213267409) 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, 23823 + ... + 31528.

It is an arithmetic number, because the mean of its divisors is an integer number (53331652).

Almost surely, 2^213267403 is an apocalyptic number.

213267403 is a deficient number, since it is larger than the sum of its proper divisors (59205).

213267403 is an equidigital number, since it uses as much as digits as its factorization.

213267403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59204.

The product of its (nonzero) digits is 6048, while the sum is 28.

The square root of 213267403 is about 14603.6777217248. The cubic root of 213267403 is about 597.4590722595.

The spelling of 213267403 in words is "two hundred thirteen million, two hundred sixty-seven thousand, four hundred three".