4961281 has 4 divisors (see below), whose sum is σ = 5342932. Its totient is φ = 4579632.

The previous prime is 4961249. The next prime is 4961311. The reversal of 4961281 is 1821694.

It is a happy number.

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 1123600 + 3837681 = 1060^2 + 1959^2 .

It is a cyclic number.

It is not a de Polignac number, because 4961281 - 2⁵ = 4961249 is a prime.

It is a super-2 number, since 2×4961281² = 49228618321922, which contains 22 as substring.

It is a Duffinian number.

4961281 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (7961281) 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, 190806 + ... + 190831.

It is an arithmetic number, because the mean of its divisors is an integer number (1335733).

Almost surely, 2^4961281 is an apocalyptic number.

It is an amenable number.

4961281 is a deficient number, since it is larger than the sum of its proper divisors (381651).

4961281 is a wasteful number, since it uses less digits than its factorization.

4961281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 381650.

The product of its digits is 3456, while the sum is 31.

The square root of 4961281 is about 2227.3933195554. The cubic root of 4961281 is about 170.5550600031. Note that the first 3 decimals are identical.

The spelling of 4961281 in words is "four million, nine hundred sixty-one thousand, two hundred eighty-one".