544492981 has 2 divisors, whose sum is σ = 544492982. Its totient is φ = 544492980.

The previous prime is 544492957. The next prime is 544493029. The reversal of 544492981 is 189294445.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 541306756 + 3186225 = 23266^2 + 1785^2 .

It is a cyclic number.

It is not a de Polignac number, because 544492981 - 2⁹ = 544492469 is a prime.

It is a super-2 number, since 2×544492981² = 592945212716532722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (544492901) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 272246490 + 272246491.

It is an arithmetic number, because the mean of its divisors is an integer number (272246491).

Almost surely, 2^544492981 is an apocalyptic number.

It is an amenable number.

544492981 is a deficient number, since it is larger than the sum of its proper divisors (1).

544492981 is an equidigital number, since it uses as much as digits as its factorization.

544492981 is an evil number, because the sum of its binary digits is even.

The product of its digits is 414720, while the sum is 46.

The square root of 544492981 is about 23334.3733792018. The cubic root of 544492981 is about 816.5775364248.

The spelling of 544492981 in words is "five hundred forty-four million, four hundred ninety-two thousand, nine hundred eighty-one".