2153641 has 8 divisors (see below), whose sum is σ = 2471040. Its totient is φ = 1838688.

The previous prime is 2153639. The next prime is 2153647. The reversal of 2153641 is 1463512.

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 2153641 - 2¹ = 2153639 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2153647) 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, 2085 + ... + 2941.

It is an arithmetic number, because the mean of its divisors is an integer number (308880).

2^2153641 is an apocalyptic number.

It is an amenable number.

2153641 is a deficient number, since it is larger than the sum of its proper divisors (317399).

2153641 is an equidigital number, since it uses as much as digits as its factorization.

2153641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1223.

The product of its digits is 720, while the sum is 22.

The square root of 2153641 is about 1467.5288753548. The cubic root of 2153641 is about 129.1391043977.

The spelling of 2153641 in words is "two million, one hundred fifty-three thousand, six hundred forty-one".