2140723 has 12 divisors (see below), whose sum is σ = 2371680. Its totient is φ = 1930656.

The previous prime is 2140681. The next prime is 2140729. The reversal of 2140723 is 3270412.

It is a de Polignac number, because none of the positive numbers 2^k-2140723 is a prime.

It is a d-powerful number, because it can be written as 2¹³ + 1 + 4⁷ + 0 + 7⁵ + 2²¹ + 3⁷ .

It is a Duffinian number.

2140723 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 2140723.

It is not an unprimeable number, because it can be changed into a prime (2140729) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8838 + ... + 9076.

It is an arithmetic number, because the mean of its divisors is an integer number (197640).

2^2140723 is an apocalyptic number.

2140723 is a deficient number, since it is larger than the sum of its proper divisors (230957).

2140723 is a wasteful number, since it uses less digits than its factorization.

2140723 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 318 (or 305 counting only the distinct ones).

The product of its (nonzero) digits is 336, while the sum is 19.

The square root of 2140723 is about 1463.1209792768. The cubic root of 2140723 is about 128.8803850854.

The spelling of 2140723 in words is "two million, one hundred forty thousand, seven hundred twenty-three".