10136881 has 4 divisors (see below), whose sum is σ = 10384164. Its totient is φ = 9889600.

The previous prime is 10136869. The next prime is 10136897. The reversal of 10136881 is 18863101.

It is a happy number.

10136881 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: 18863101 = 349 ⋅54049.

It can be written as a sum of positive squares in 2 ways, for example, as 5475600 + 4661281 = 2340^2 + 2159^2 .

It is a cyclic number.

It is not a de Polignac number, because 10136881 - 2¹³ = 10128689 is a prime.

It is a super-2 number, since 2×10136881² = 205512712816322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10136801) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 123580 + ... + 123661.

It is an arithmetic number, because the mean of its divisors is an integer number (2596041).

Almost surely, 2^10136881 is an apocalyptic number.

It is an amenable number.

10136881 is a deficient number, since it is larger than the sum of its proper divisors (247283).

10136881 is an equidigital number, since it uses as much as digits as its factorization.

10136881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 247282.

The product of its (nonzero) digits is 1152, while the sum is 28.

The square root of 10136881 is about 3183.8468870221. The cubic root of 10136881 is about 216.4220215664.

Adding to 10136881 its reverse (18863101), we get a palindrome (28999982).

The spelling of 10136881 in words is "ten million, one hundred thirty-six thousand, eight hundred eighty-one".