2647142 has 4 divisors (see below), whose sum is σ = 3970716. Its totient is φ = 1323570.

The previous prime is 2647133. The next prime is 2647157. The reversal of 2647142 is 2417462.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2417462 = 2 ⋅1208731.

It is an Ulam number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 661784 + ... + 661787.

It is an arithmetic number, because the mean of its divisors is an integer number (992679).

2^2647142 is an apocalyptic number.

2647142 is a deficient number, since it is larger than the sum of its proper divisors (1323574).

2647142 is a wasteful number, since it uses less digits than its factorization.

2647142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1323573.

The product of its digits is 2688, while the sum is 26.

The square root of 2647142 is about 1627.0039950781. The cubic root of 2647142 is about 138.3329843058.

The spelling of 2647142 in words is "two million, six hundred forty-seven thousand, one hundred forty-two".