5136421 has 8 divisors (see below), whose sum is σ = 5383424. Its totient is φ = 4894560.

The previous prime is 5136401. The next prime is 5136427. The reversal of 5136421 is 1246315.

5136421 = T₁₁₈ + T₁₁₉ + ... + T₃₁₈.

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 5136421 - 2¹¹ = 5134373 is a prime.

It is a Duffinian number.

5136421 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 5136392 and 5136401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5136427) 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, 841 + ... + 3313.

It is an arithmetic number, because the mean of its divisors is an integer number (672928).

Almost surely, 2^5136421 is an apocalyptic number.

It is an amenable number.

5136421 is a deficient number, since it is larger than the sum of its proper divisors (247003).

5136421 is a wasteful number, since it uses less digits than its factorization.

5136421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2571.

The product of its digits is 720, while the sum is 22.

The square root of 5136421 is about 2266.3673576894. The cubic root of 5136421 is about 172.5388388357.

The spelling of 5136421 in words is "five million, one hundred thirty-six thousand, four hundred twenty-one".