38436131 has 4 divisors (see below), whose sum is σ = 38459472. Its totient is φ = 38412792.

The previous prime is 38436119. The next prime is 38436137. The reversal of 38436131 is 13163483.

38436131 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13163483 = 113 ⋅116491.

It is a cyclic number.

It is not a de Polignac number, because 38436131 - 2⁶ = 38436067 is a prime.

It is a super-2 number, since 2×38436131² = 2954672332498322, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 38436094 and 38436103.

It is not an unprimeable number, because it can be changed into a prime (38436137) 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, 8996 + ... + 12561.

It is an arithmetic number, because the mean of its divisors is an integer number (9614868).

Almost surely, 2^38436131 is an apocalyptic number.

38436131 is a deficient number, since it is larger than the sum of its proper divisors (23341).

38436131 is a wasteful number, since it uses less digits than its factorization.

38436131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23340.

The product of its digits is 5184, while the sum is 29.

The square root of 38436131 is about 6199.6879760194. The cubic root of 38436131 is about 337.4788456791.

The spelling of 38436131 in words is "thirty-eight million, four hundred thirty-six thousand, one hundred thirty-one".