5642139 has 8 divisors (see below), whose sum is σ = 7552512. Its totient is φ = 3746600.

The previous prime is 5642099. The next prime is 5642191. The reversal of 5642139 is 9312465.

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 5642139 - 2¹² = 5638043 is a prime.

It is not an unprimeable number, because it can be changed into a prime (5642239) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2787 + ... + 4364.

It is an arithmetic number, because the mean of its divisors is an integer number (944064).

Almost surely, 2^5642139 is an apocalyptic number.

5642139 is a deficient number, since it is larger than the sum of its proper divisors (1910373).

5642139 is a wasteful number, since it uses less digits than its factorization.

5642139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7417.

The product of its digits is 6480, while the sum is 30.

The square root of 5642139 is about 2375.3187154569. The cubic root of 5642139 is about 178.0251090279.

It can be divided in two parts, 56 and 42139, that added together give a triangular number (42195 = T₂₉₀).

The spelling of 5642139 in words is "five million, six hundred forty-two thousand, one hundred thirty-nine".