2153601 has 24 divisors (see below), whose sum is σ = 3336480. Its totient is φ = 1372680.

The previous prime is 2153563. The next prime is 2153621. The reversal of 2153601 is 1063512.

It is not a de Polignac number, because 2153601 - 2⁹ = 2153089 is a prime.

It is a hoax number, since the sum of its digits (18) coincides with the sum of the digits of its distinct prime factors.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2153621) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 25906 + ... + 25988.

It is an arithmetic number, because the mean of its divisors is an integer number (139020).

2^2153601 is an apocalyptic number.

It is an amenable number.

2153601 is a deficient number, since it is larger than the sum of its proper divisors (1182879).

2153601 is an equidigital number, since it uses as much as digits as its factorization.

2153601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 154 (or 117 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 18.

The square root of 2153601 is about 1467.5152469395. The cubic root of 2153601 is about 129.1383048840.

The spelling of 2153601 in words is "two million, one hundred fifty-three thousand, six hundred one".