2254184981 has 2 divisors, whose sum is σ = 2254184982. Its totient is φ = 2254184980.

The previous prime is 2254184957. The next prime is 2254184987. The reversal of 2254184981 is 1894814522.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2058436900 + 195748081 = 45370^2 + 13991^2 .

It is a cyclic number.

It is not a de Polignac number, because 2254184981 - 2¹⁰ = 2254183957 is a prime.

It is a super-2 number, since 2×2254184981² = 10162699857131940722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2254184987) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1127092490 + 1127092491.

It is an arithmetic number, because the mean of its divisors is an integer number (1127092491).

Almost surely, 2^2254184981 is an apocalyptic number.

It is an amenable number.

2254184981 is a deficient number, since it is larger than the sum of its proper divisors (1).

2254184981 is an equidigital number, since it uses as much as digits as its factorization.

2254184981 is an evil number, because the sum of its binary digits is even.

The product of its digits is 184320, while the sum is 44.

The square root of 2254184981 is about 47478.2579819437. The cubic root of 2254184981 is about 1311.1826200661.

The spelling of 2254184981 in words is "two billion, two hundred fifty-four million, one hundred eighty-four thousand, nine hundred eighty-one".