2745231 has 8 divisors (see below), whose sum is σ = 3676464. Its totient is φ = 1822080.

The previous prime is 2745229. The next prime is 2745251. The reversal of 2745231 is 1325472.

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

It is not a de Polignac number, because 2745231 - 2¹ = 2745229 is a prime.

It is a super-2 number, since 2×2745231² = 15072586486722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2745251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1176 + ... + 2621.

It is an arithmetic number, because the mean of its divisors is an integer number (459558).

2^2745231 is an apocalyptic number.

2745231 is a deficient number, since it is larger than the sum of its proper divisors (931233).

2745231 is a wasteful number, since it uses less digits than its factorization.

2745231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4041.

The product of its digits is 1680, while the sum is 24.

The square root of 2745231 is about 1656.8738636360. The cubic root of 2745231 is about 140.0209322443.

The spelling of 2745231 in words is "two million, seven hundred forty-five thousand, two hundred thirty-one".