2151343 has 4 divisors (see below), whose sum is σ = 2157160. Its totient is φ = 2145528.

The previous prime is 2151337. The next prime is 2151349. The reversal of 2151343 is 3431512.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (2151337) and next prime (2151349).

It is a cyclic number.

It is not a de Polignac number, because 2151343 - 2⁹ = 2150831 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2151343.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2151349) 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, 2313 + ... + 3106.

It is an arithmetic number, because the mean of its divisors is an integer number (539290).

2^2151343 is an apocalyptic number.

2151343 is a deficient number, since it is larger than the sum of its proper divisors (5817).

2151343 is an equidigital number, since it uses as much as digits as its factorization.

2151343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5816.

The product of its digits is 360, while the sum is 19.

The square root of 2151343 is about 1466.7457175666. The cubic root of 2151343 is about 129.0931562761.

Adding to 2151343 its reverse (3431512), we get a palindrome (5582855).

The spelling of 2151343 in words is "two million, one hundred fifty-one thousand, three hundred forty-three".