2142471 has 8 divisors (see below), whose sum is σ = 2876400. Its totient is φ = 1418432.

The previous prime is 2142463. The next prime is 2142499. The reversal of 2142471 is 1742412.

It is a happy number.

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 2142471 - 2³ = 2142463 is a prime.

It is a super-3 number, since 3×2142471³ = 29502995368160259333, which contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2142431) 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, 1950 + ... + 2843.

It is an arithmetic number, because the mean of its divisors is an integer number (359550).

2^2142471 is an apocalyptic number.

2142471 is a deficient number, since it is larger than the sum of its proper divisors (733929).

2142471 is a wasteful number, since it uses less digits than its factorization.

2142471 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4945.

The product of its digits is 448, while the sum is 21.

The square root of 2142471 is about 1463.7182105856. The cubic root of 2142471 is about 128.9154544869.

Adding to 2142471 its reverse (1742412), we get a palindrome (3884883).

The spelling of 2142471 in words is "two million, one hundred forty-two thousand, four hundred seventy-one".