2140312 has 16 divisors (see below), whose sum is σ = 4224600. Its totient is φ = 1013760.

The previous prime is 2140309. The next prime is 2140337. The reversal of 2140312 is 2130412.

It is a junction number, because it is equal to n+sod(n) for n = 2140292 and 2140301.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6889 + ... + 7192.

2^2140312 is an apocalyptic number.

It is an amenable number.

2140312 is a deficient number, since it is larger than the sum of its proper divisors (2084288).

2140312 is a wasteful number, since it uses less digits than its factorization.

2140312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14106 (or 14102 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 2140312 is about 1462.9805193508. The cubic root of 2140312 is about 128.8721365905.

Adding to 2140312 its reverse (2130412), we get a palindrome (4270724).

The spelling of 2140312 in words is "two million, one hundred forty thousand, three hundred twelve".