403013213 has 4 divisors (see below), whose sum is σ = 413905500. Its totient is φ = 392120928.

The previous prime is 403013197. The next prime is 403013249. The reversal of 403013213 is 312310304.

It is a happy number.

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 381733444 + 21279769 = 19538^2 + 4613^2 .

It is a cyclic number.

It is not a de Polignac number, because 403013213 - 2⁴ = 403013197 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 403013191 and 403013200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (403013813) 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, 5446088 + ... + 5446161.

It is an arithmetic number, because the mean of its divisors is an integer number (103476375).

Almost surely, 2^403013213 is an apocalyptic number.

It is an amenable number.

403013213 is a deficient number, since it is larger than the sum of its proper divisors (10892287).

403013213 is a wasteful number, since it uses less digits than its factorization.

403013213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10892286.

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 403013213 is about 20075.1889903931. The cubic root of 403013213 is about 738.6518019810.

Adding to 403013213 its reverse (312310304), we get a palindrome (715323517).

The spelling of 403013213 in words is "four hundred three million, thirteen thousand, two hundred thirteen".