2140311 has 8 divisors (see below), whose sum is σ = 2977920. Its totient is φ = 1364792.

The previous prime is 2140309. The next prime is 2140337. The reversal of 2140311 is 1130412.

It is a happy number.

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 2140311 - 2¹ = 2140309 is a prime.

It is a super-3 number, since 3×2140311³ = 29413852163336700693, which contains 333 as substring.

2140311 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2140301) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15441 + ... + 15578.

It is an arithmetic number, because the mean of its divisors is an integer number (372240).

2^2140311 is an apocalyptic number.

2140311 is a deficient number, since it is larger than the sum of its proper divisors (837609).

2140311 is a wasteful number, since it uses less digits than its factorization.

2140311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31045.

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 2140311 is about 1462.9801775827. The cubic root of 2140311 is about 128.8721165199.

Adding to 2140311 its reverse (1130412), we get a palindrome (3270723).

The spelling of 2140311 in words is "two million, one hundred forty thousand, three hundred eleven".