2781141 has 16 divisors (see below), whose sum is σ = 4105728. Its totient is φ = 1660400.

The previous prime is 2781139. The next prime is 2781143. The reversal of 2781141 is 1411872.

It is an interprime number because it is at equal distance from previous prime (2781139) and next prime (2781143).

It is a cyclic number.

It is not a de Polignac number, because 2781141 - 2¹ = 2781139 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2781143) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1750 + ... + 2936.

It is an arithmetic number, because the mean of its divisors is an integer number (256608).

2^2781141 is an apocalyptic number.

It is an amenable number.

2781141 is a deficient number, since it is larger than the sum of its proper divisors (1324587).

2781141 is a wasteful number, since it uses less digits than its factorization.

2781141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1272.

The product of its digits is 448, while the sum is 24.

The square root of 2781141 is about 1667.6753281140. The cubic root of 2781141 is about 140.6288210320.

The spelling of 2781141 in words is "two million, seven hundred eighty-one thousand, one hundred forty-one".