2140031 has 8 divisors (see below), whose sum is σ = 2196480. Its totient is φ = 2084472.

The previous prime is 2140013. The next prime is 2140049. The reversal of 2140031 is 1300412.

2140031 = 124² + 125² + ... + 202².

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (2140013) and next prime (2140049).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2140031 - 2⁶ = 2139967 is a prime.

It is a super-2 number, since 2×2140031² = 9159465361922, 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 = 2139994 and 2140021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2140001) 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 7 ways as a sum of consecutive naturals, for example, 8006 + ... + 8268.

It is an arithmetic number, because the mean of its divisors is an integer number (274560).

2^2140031 is an apocalyptic number.

2140031 is a deficient number, since it is larger than the sum of its proper divisors (56449).

2140031 is a wasteful number, since it uses less digits than its factorization.

2140031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 445.

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

The square root of 2140031 is about 1462.8844793763. The cubic root of 2140031 is about 128.8664965008.

Adding to 2140031 its reverse (1300412), we get a palindrome (3440443).

The spelling of 2140031 in words is "two million, one hundred forty thousand, thirty-one".