2725131 has 4 divisors (see below), whose sum is σ = 3633512. Its totient is φ = 1816752.

The previous prime is 2725127. The next prime is 2725153. The reversal of 2725131 is 1315272.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 2725131 - 2² = 2725127 is a prime.

It is a super-2 number, since 2×2725131² = 14852677934322, which contains 22 as substring.

It is a D-number.

It is a Duffinian number.

2725131 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 2725098 and 2725107.

It is not an unprimeable number, because it can be changed into a prime (2725181) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 454186 + ... + 454191.

It is an arithmetic number, because the mean of its divisors is an integer number (908378).

2^2725131 is an apocalyptic number.

2725131 is a deficient number, since it is larger than the sum of its proper divisors (908381).

2725131 is an equidigital number, since it uses as much as digits as its factorization.

2725131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 908380.

The product of its digits is 420, while the sum is 21.

The square root of 2725131 is about 1650.7970802010. The cubic root of 2725131 is about 139.6783602616.

The spelling of 2725131 in words is "two million, seven hundred twenty-five thousand, one hundred thirty-one".