3054781 has 4 divisors (see below), whose sum is σ = 3234492. Its totient is φ = 2875072.

The previous prime is 3054769. The next prime is 3054809. The reversal of 3054781 is 1874503.

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

It can be written as a sum of positive squares in 2 ways, for example, as 1452025 + 1602756 = 1205^2 + 1266^2 .

It is a cyclic number.

It is not a de Polignac number, because 3054781 - 2¹¹ = 3052733 is a prime.

It is a super-2 number, since 2×3054781² = 18663373915922, which contains 22 as substring.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3054721) 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, 89830 + ... + 89863.

It is an arithmetic number, because the mean of its divisors is an integer number (808623).

Almost surely, 2^3054781 is an apocalyptic number.

It is an amenable number.

3054781 is a deficient number, since it is larger than the sum of its proper divisors (179711).

3054781 is a wasteful number, since it uses less digits than its factorization.

3054781 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 179710.

The product of its (nonzero) digits is 3360, while the sum is 28.

The square root of 3054781 is about 1747.7931799844. The cubic root of 3054781 is about 145.0975324788.

It can be divided in two parts, 30547 and 81, that added together give a triangular number (30628 = T₂₄₇).

The spelling of 3054781 in words is "three million, fifty-four thousand, seven hundred eighty-one".