5136681 has 8 divisors (see below), whose sum is σ = 7471584. Its totient is φ = 3113120.

The previous prime is 5136667. The next prime is 5136701. The reversal of 5136681 is 1866315.

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 5136681 - 2⁷ = 5136553 is a prime.

It is a super-2 number, since 2×5136681² = 52770983391522, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (5136611) 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, 77796 + ... + 77861.

It is an arithmetic number, because the mean of its divisors is an integer number (933948).

Almost surely, 2^5136681 is an apocalyptic number.

It is an amenable number.

5136681 is a deficient number, since it is larger than the sum of its proper divisors (2334903).

5136681 is a wasteful number, since it uses less digits than its factorization.

5136681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155671.

The product of its digits is 4320, while the sum is 30.

The square root of 5136681 is about 2266.4247174791. The cubic root of 5136681 is about 172.5417500289.

The spelling of 5136681 in words is "five million, one hundred thirty-six thousand, six hundred eighty-one".