2154235 has 4 divisors (see below), whose sum is σ = 2585088. Its totient is φ = 1723384.

The previous prime is 2154227. The next prime is 2154241. The reversal of 2154235 is 5324512.

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 2154235 - 2³ = 2154227 is a prime.

It is a Duffinian number.

It is a zygodrome in base 3.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 215419 + ... + 215428.

It is an arithmetic number, because the mean of its divisors is an integer number (646272).

2^2154235 is an apocalyptic number.

2154235 is a deficient number, since it is larger than the sum of its proper divisors (430853).

2154235 is an equidigital number, since it uses as much as digits as its factorization.

2154235 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 430852.

The product of its digits is 1200, while the sum is 22.

The square root of 2154235 is about 1467.7312424283. The cubic root of 2154235 is about 129.1509760106.

Adding to 2154235 its reverse (5324512), we get a palindrome (7478747).

The spelling of 2154235 in words is "two million, one hundred fifty-four thousand, two hundred thirty-five".