2945261 has 12 divisors (see below), whose sum is σ = 3282972. Its totient is φ = 2640000.

The previous prime is 2945249. The next prime is 2945287. The reversal of 2945261 is 1625492.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 2579236 + 366025 = 1606^2 + 605^2 .

It is a de Polignac number, because none of the positive numbers 2^k-2945261 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2945291) 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 11 ways as a sum of consecutive naturals, for example, 12101 + ... + 12341.

It is an arithmetic number, because the mean of its divisors is an integer number (273581).

2^2945261 is an apocalyptic number.

It is an amenable number.

2945261 is a deficient number, since it is larger than the sum of its proper divisors (337711).

2945261 is a wasteful number, since it uses less digits than its factorization.

2945261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 364 (or 353 counting only the distinct ones).

The product of its digits is 4320, while the sum is 29.

The square root of 2945261 is about 1716.1762729976. The cubic root of 2945261 is about 143.3423748878.

It can be divided in two parts, 294 and 5261, that added together give a palindrome (5555).

The spelling of 2945261 in words is "two million, nine hundred forty-five thousand, two hundred sixty-one".