2148471 has 16 divisors (see below), whose sum is σ = 3428320. Its totient is φ = 1321920.

The previous prime is 2148467. The next prime is 2148473. The reversal of 2148471 is 1748412.

It is not a de Polignac number, because 2148471 - 2² = 2148467 is a prime.

It is a super-3 number, since 3×2148471³ = 29751560003999673333, which contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

2148471 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2148473) 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, 2710 + ... + 3411.

It is an arithmetic number, because the mean of its divisors is an integer number (214270).

2^2148471 is an apocalyptic number.

2148471 is a deficient number, since it is larger than the sum of its proper divisors (1279849).

2148471 is a wasteful number, since it uses less digits than its factorization.

2148471 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6143 (or 6137 counting only the distinct ones).

The product of its digits is 1792, while the sum is 27.

The square root of 2148471 is about 1465.7663524587. The cubic root of 2148471 is about 129.0356850978.

The spelling of 2148471 in words is "two million, one hundred forty-eight thousand, four hundred seventy-one".