2152351 has 4 divisors (see below), whose sum is σ = 2226600. Its totient is φ = 2078104.

The previous prime is 2152343. The next prime is 2152357. The reversal of 2152351 is 1532512.

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

It is a cyclic number.

It is not a de Polignac number, because 2152351 - 2³ = 2152343 is a prime.

It is a super-2 number, since 2×2152351² = 9265229654402, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2152357) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37081 + ... + 37138.

It is an arithmetic number, because the mean of its divisors is an integer number (556650).

2^2152351 is an apocalyptic number.

2152351 is a deficient number, since it is larger than the sum of its proper divisors (74249).

2152351 is an equidigital number, since it uses as much as digits as its factorization.

2152351 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74248.

The product of its digits is 300, while the sum is 19.

The square root of 2152351 is about 1467.0892951692. The cubic root of 2152351 is about 129.1133150921.

Adding to 2152351 its reverse (1532512), we get a palindrome (3684863).

The spelling of 2152351 in words is "two million, one hundred fifty-two thousand, three hundred fifty-one".