2154263 has 4 divisors (see below), whose sum is σ = 2206848. Its totient is φ = 2101680.

The previous prime is 2154259. The next prime is 2154281. The reversal of 2154263 is 3624512.

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 2154263 - 2² = 2154259 is a prime.

It is a d-powerful number, because it can be written as 2⁹ + 1 + 5⁵ + 4⁴ + 2²¹ + 6⁶ + 3⁸ .

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2154293) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26231 + ... + 26312.

It is an arithmetic number, because the mean of its divisors is an integer number (551712).

2^2154263 is an apocalyptic number.

2154263 is a deficient number, since it is larger than the sum of its proper divisors (52585).

2154263 is an equidigital number, since it uses as much as digits as its factorization.

2154263 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52584.

The product of its digits is 1440, while the sum is 23.

The square root of 2154263 is about 1467.7407809283. The cubic root of 2154263 is about 129.1515355613.

Adding to 2154263 its reverse (3624512), we get a palindrome (5778775).

The spelling of 2154263 in words is "two million, one hundred fifty-four thousand, two hundred sixty-three".