5139457 has 8 divisors (see below), whose sum is σ = 5481000. Its totient is φ = 4802304.

The previous prime is 5139451. The next prime is 5139461. The reversal of 5139457 is 7549315.

It can be written as a sum of positive squares in 4 ways, for example, as 1985281 + 3154176 = 1409^2 + 1776^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5139457 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5139451) 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, 1519 + ... + 3547.

It is an arithmetic number, because the mean of its divisors is an integer number (685125).

Almost surely, 2^5139457 is an apocalyptic number.

It is an amenable number.

5139457 is a deficient number, since it is larger than the sum of its proper divisors (341543).

5139457 is a wasteful number, since it uses less digits than its factorization.

5139457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2195.

The product of its digits is 18900, while the sum is 34.

The square root of 5139457 is about 2267.0370530717. The cubic root of 5139457 is about 172.5728264925.

The spelling of 5139457 in words is "five million, one hundred thirty-nine thousand, four hundred fifty-seven".