2725191 has 16 divisors (see below), whose sum is σ = 4614400. Its totient is φ = 1557144.

The previous prime is 2725187. The next prime is 2725199. The reversal of 2725191 is 1915272.

2725191 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2725191 - 2² = 2725187 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

2725191 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2725199) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7021 + ... + 7398.

It is an arithmetic number, because the mean of its divisors is an integer number (288400).

2^2725191 is an apocalyptic number.

2725191 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

2725191 is a deficient number, since it is larger than the sum of its proper divisors (1889209).

2725191 is a wasteful number, since it uses less digits than its factorization.

2725191 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14435 (or 14429 counting only the distinct ones).

The product of its digits is 1260, while the sum is 27.

The square root of 2725191 is about 1650.8152531401. The cubic root of 2725191 is about 139.6793853671.

It can be divided in two parts, 2725 and 191, that added together give a square (2916 = 54²).

The spelling of 2725191 in words is "two million, seven hundred twenty-five thousand, one hundred ninety-one".