1403213 has 8 divisors (see below), whose sum is σ = 1636800. Its totient is φ = 1202460.

The previous prime is 1403189. The next prime is 1403239. The reversal of 1403213 is 3123041.

It is not a de Polignac number, because 1403213 - 2⁸ = 1402957 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 (1403113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1703 + ... + 2388.

It is an arithmetic number, because the mean of its divisors is an integer number (204600).

2^1403213 is an apocalyptic number.

It is an amenable number.

1403213 is a deficient number, since it is larger than the sum of its proper divisors (233587).

1403213 is an frugal number, since it uses more digits than its factorization.

1403213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4112 (or 4098 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 1403213 is about 1184.5729188193. The cubic root of 1403213 is about 111.9544085271.

Adding to 1403213 its reverse (3123041), we get a palindrome (4526254).

The spelling of 1403213 in words is "one million, four hundred three thousand, two hundred thirteen".