1371213 has 12 divisors (see below), whose sum is σ = 1991808. Its totient is φ = 909000.

The previous prime is 1371193. The next prime is 1371217. The reversal of 1371213 is 3121731.

It is not a de Polignac number, because 1371213 - 2⁹ = 1370701 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1371217) 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 11 ways as a sum of consecutive naturals, for example, 1956 + ... + 2562.

It is an arithmetic number, because the mean of its divisors is an integer number (165984).

2^1371213 is an apocalyptic number.

It is an amenable number.

1371213 is a deficient number, since it is larger than the sum of its proper divisors (620595).

1371213 is a wasteful number, since it uses less digits than its factorization.

1371213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 864 (or 861 counting only the distinct ones).

The product of its digits is 126, while the sum is 18.

The square root of 1371213 is about 1170.9880443455. The cubic root of 1371213 is about 111.0968232369.

Adding to 1371213 its reverse (3121731), we get a palindrome (4492944).

The spelling of 1371213 in words is "one million, three hundred seventy-one thousand, two hundred thirteen".