5138669 has 4 divisors (see below), whose sum is σ = 5143680. Its totient is φ = 5133660.

The previous prime is 5138663. The next prime is 5138677. The reversal of 5138669 is 9668315.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 9668315 = 5 ⋅1933663.

It is a cyclic number.

It is not a de Polignac number, because 5138669 - 2¹² = 5134573 is a prime.

It is a super-2 number, since 2×5138669² = 52811838183122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5138663) 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 3 ways as a sum of consecutive naturals, for example, 347 + ... + 3224.

It is an arithmetic number, because the mean of its divisors is an integer number (1285920).

Almost surely, 2^5138669 is an apocalyptic number.

It is an amenable number.

5138669 is a deficient number, since it is larger than the sum of its proper divisors (5011).

5138669 is a wasteful number, since it uses less digits than its factorization.

5138669 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5010.

The product of its digits is 38880, while the sum is 38.

The square root of 5138669 is about 2266.8632512792. The cubic root of 5138669 is about 172.5640062132.

The spelling of 5138669 in words is "five million, one hundred thirty-eight thousand, six hundred sixty-nine".