2153895 has 8 divisors (see below), whose sum is σ = 3446256. Its totient is φ = 1148736.

The previous prime is 2153891. The next prime is 2153903. The reversal of 2153895 is 5983512.

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

It is not a de Polignac number, because 2153895 - 2² = 2153891 is a prime.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2153891) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 71782 + ... + 71811.

It is an arithmetic number, because the mean of its divisors is an integer number (430782).

2^2153895 is an apocalyptic number.

2153895 is a deficient number, since it is larger than the sum of its proper divisors (1292361).

2153895 is a wasteful number, since it uses less digits than its factorization.

2153895 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143601.

The product of its digits is 10800, while the sum is 33.

The square root of 2153895 is about 1467.6154128381. The cubic root of 2153895 is about 129.1441810784.

The spelling of 2153895 in words is "two million, one hundred fifty-three thousand, eight hundred ninety-five".