2740123 has 8 divisors (see below), whose sum is σ = 2984400. Its totient is φ = 2505888.

The previous prime is 2740093. The next prime is 2740139. The reversal of 2740123 is 3210472.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2740123 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a d-powerful number, because it can be written as 2¹⁹ + 7⁶ + 4⁵ + 0 + 1 + 2²¹ + 3² .

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2740123.

It is not an unprimeable number, because it can be changed into a prime (2740223) 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, 1936 + ... + 3037.

It is an arithmetic number, because the mean of its divisors is an integer number (373050).

2^2740123 is an apocalyptic number.

2740123 is a deficient number, since it is larger than the sum of its proper divisors (244277).

2740123 is a wasteful number, since it uses less digits than its factorization.

2740123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5021.

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

The square root of 2740123 is about 1655.3316888165. The cubic root of 2740123 is about 139.9340335481.

Adding to 2740123 its reverse (3210472), we get a palindrome (5950595).

The spelling of 2740123 in words is "two million, seven hundred forty thousand, one hundred twenty-three".