2153849 has 16 divisors (see below), whose sum is σ = 2428416. Its totient is φ = 1900800.

The previous prime is 2153839. The next prime is 2153861. The reversal of 2153849 is 9483512.

2153849 = 235² + 236² + ... + 268².

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2153849 is a prime.

It is a Smith number, since the sum of its digits (32) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (2153819) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32114 + ... + 32180.

It is an arithmetic number, because the mean of its divisors is an integer number (151776).

2^2153849 is an apocalyptic number.

It is an amenable number.

2153849 is a deficient number, since it is larger than the sum of its proper divisors (274567).

2153849 is a wasteful number, since it uses less digits than its factorization.

2153849 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 176.

The product of its digits is 8640, while the sum is 32.

The square root of 2153849 is about 1467.5997410738. The cubic root of 2153849 is about 129.1432617091.

The spelling of 2153849 in words is "two million, one hundred fifty-three thousand, eight hundred forty-nine".