2740161 has 8 divisors (see below), whose sum is σ = 3845920. Its totient is φ = 1730592.

The previous prime is 2740141. The next prime is 2740169. The reversal of 2740161 is 1610472.

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

It is not a de Polignac number, because 2740161 - 2¹⁸ = 2478017 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2740169) 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, 23980 + ... + 24093.

It is an arithmetic number, because the mean of its divisors is an integer number (480740).

2^2740161 is an apocalyptic number.

It is an amenable number.

2740161 is a deficient number, since it is larger than the sum of its proper divisors (1105759).

2740161 is a wasteful number, since it uses less digits than its factorization.

2740161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48095.

The product of its (nonzero) digits is 336, while the sum is 21.

The square root of 2740161 is about 1655.3431668388. The cubic root of 2740161 is about 139.9346804130.

The spelling of 2740161 in words is "two million, seven hundred forty thousand, one hundred sixty-one".