10440131 has 4 divisors (see below), whose sum is σ = 11243232. Its totient is φ = 9637032.

The previous prime is 10440127. The next prime is 10440161. The reversal of 10440131 is 13104401.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 10440131 - 2² = 10440127 is a prime.

It is a super-2 number, since 2×10440131² = 217992670594322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (10440161) 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, 401531 + ... + 401556.

It is an arithmetic number, because the mean of its divisors is an integer number (2810808).

Almost surely, 2^10440131 is an apocalyptic number.

10440131 is a deficient number, since it is larger than the sum of its proper divisors (803101).

10440131 is an equidigital number, since it uses as much as digits as its factorization.

10440131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 803100.

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 10440131 is about 3231.1191559582. The cubic root of 10440131 is about 218.5589770750.

Adding to 10440131 its reverse (13104401), we get a palindrome (23544532).

The spelling of 10440131 in words is "ten million, four hundred forty thousand, one hundred thirty-one".