5142139 has 4 divisors (see below), whose sum is σ = 5176800. Its totient is φ = 5107480.

The previous prime is 5142131. The next prime is 5142173. The reversal of 5142139 is 9312415.

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 5142139 - 2³ = 5142131 is a prime.

It is a Duffinian number.

5142139 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (5142131) 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, 17107 + ... + 17404.

It is an arithmetic number, because the mean of its divisors is an integer number (1294200).

Almost surely, 2^5142139 is an apocalyptic number.

5142139 is a deficient number, since it is larger than the sum of its proper divisors (34661).

5142139 is a wasteful number, since it uses less digits than its factorization.

5142139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34660.

The product of its digits is 1080, while the sum is 25.

The square root of 5142139 is about 2267.6284969104. The cubic root of 5142139 is about 172.6028400285.

The spelling of 5142139 in words is "five million, one hundred forty-two thousand, one hundred thirty-nine".