2151322 has 8 divisors (see below), whose sum is σ = 3233376. Its totient is φ = 1073532.

The previous prime is 2151319. The next prime is 2151329. The reversal of 2151322 is 2231512.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 2151296 and 2151305.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2151329) 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, 993 + ... + 2299.

It is an arithmetic number, because the mean of its divisors is an integer number (404172).

2^2151322 is an apocalyptic number.

2151322 is a deficient number, since it is larger than the sum of its proper divisors (1082054).

2151322 is a wasteful number, since it uses less digits than its factorization.

2151322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2132.

The product of its digits is 120, while the sum is 16.

The square root of 2151322 is about 1466.7385588441. The cubic root of 2151322 is about 129.0927362338.

Adding to 2151322 its reverse (2231512), we get a palindrome (4382834).

The spelling of 2151322 in words is "two million, one hundred fifty-one thousand, three hundred twenty-two".