2400131 has 4 divisors (see below), whose sum is σ = 2455992. Its totient is φ = 2344272.

The previous prime is 2400109. The next prime is 2400143. The reversal of 2400131 is 1310042.

It is a happy number.

2400131 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: 1310042 = 2 ⋅655021.

It is a cyclic number.

It is not a de Polignac number, because 2400131 - 2⁶ = 2400067 is a prime.

It is a super-2 number, since 2×2400131² = 11521257634322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2400161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27866 + ... + 27951.

It is an arithmetic number, because the mean of its divisors is an integer number (613998).

2^2400131 is an apocalyptic number.

2400131 is a deficient number, since it is larger than the sum of its proper divisors (55861).

2400131 is an equidigital number, since it uses as much as digits as its factorization.

2400131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55860.

The product of its (nonzero) digits is 24, while the sum is 11.

The square root of 2400131 is about 1549.2356179742. The cubic root of 2400131 is about 133.8890259642.

Adding to 2400131 its reverse (1310042), we get a palindrome (3710173).

The spelling of 2400131 in words is "two million, four hundred thousand, one hundred thirty-one".