2152145 has 8 divisors (see below), whose sum is σ = 2590656. Its totient is φ = 1716336.

The previous prime is 2152127. The next prime is 2152153. The reversal of 2152145 is 5412512.

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

It is a cyclic number.

It is not a de Polignac number, because 2152145 - 2¹² = 2148049 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2204 + ... + 3026.

It is an arithmetic number, because the mean of its divisors is an integer number (323832).

2^2152145 is an apocalyptic number.

It is an amenable number.

2152145 is a deficient number, since it is larger than the sum of its proper divisors (438511).

2152145 is an equidigital number, since it uses as much as digits as its factorization.

2152145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1351.

The product of its digits is 400, while the sum is 20.

The square root of 2152145 is about 1467.0190864471. The cubic root of 2152145 is about 129.1091958459.

Adding to 2152145 its reverse (5412512), we get a palindrome (7564657).

The spelling of 2152145 in words is "two million, one hundred fifty-two thousand, one hundred forty-five".