5456981 has 2 divisors, whose sum is σ = 5456982. Its totient is φ = 5456980.

The previous prime is 5456953. The next prime is 5456993. The reversal of 5456981 is 1896545.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3591025 + 1865956 = 1895^2 + 1366^2 .

It is a cyclic number.

It is not a de Polignac number, because 5456981 - 2⁶ = 5456917 is a prime.

It is a super-2 number, since 2×5456981² = 59557283268722, which contains 22 as substring.

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

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5456921) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2728490 + 2728491.

It is an arithmetic number, because the mean of its divisors is an integer number (2728491).

Almost surely, 2^5456981 is an apocalyptic number.

It is an amenable number.

5456981 is a deficient number, since it is larger than the sum of its proper divisors (1).

5456981 is an equidigital number, since it uses as much as digits as its factorization.

5456981 is an evil number, because the sum of its binary digits is even.

The product of its digits is 43200, while the sum is 38.

The square root of 5456981 is about 2336.0181934223. The cubic root of 5456981 is about 176.0559932896.

The spelling of 5456981 in words is "five million, four hundred fifty-six thousand, nine hundred eighty-one".