10409131 has 4 divisors (see below), whose sum is σ = 10957000. Its totient is φ = 9861264.

The previous prime is 10409107. The next prime is 10409141. The reversal of 10409131 is 13190401.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13190401 = 7 ⋅1884343.

It is a cyclic number.

It is not a de Polignac number, because 10409131 - 2¹⁵ = 10376363 is a prime.

It is a super-2 number, since 2×10409131² = 216700016350322, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (19), and also a Moran number because the ratio is a prime number: 547849 = 10409131 / (1 + 0 + 4 + 0 + 9 + 1 + 3 + 1).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10409099 and 10409108.

It is not an unprimeable number, because it can be changed into a prime (10409141) 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, 273906 + ... + 273943.

It is an arithmetic number, because the mean of its divisors is an integer number (2739250).

Almost surely, 2^10409131 is an apocalyptic number.

10409131 is a deficient number, since it is larger than the sum of its proper divisors (547869).

10409131 is an equidigital number, since it uses as much as digits as its factorization.

10409131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 547868.

The product of its (nonzero) digits is 108, while the sum is 19.

The square root of 10409131 is about 3226.3184901680. The cubic root of 10409131 is about 218.3424393900.

Adding to 10409131 its reverse (13190401), we get a palindrome (23599532).

The spelling of 10409131 in words is "ten million, four hundred nine thousand, one hundred thirty-one".