274198081 has 2 divisors, whose sum is σ = 274198082. Its totient is φ = 274198080.

The previous prime is 274198061. The next prime is 274198109. The reversal of 274198081 is 180891472.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 267649600 + 6548481 = 16360^2 + 2559^2 .

It is a cyclic number.

It is not a de Polignac number, because 274198081 - 2¹⁷ = 274067009 is a prime.

It is a super-2 number, since 2×274198081² = 150369175248165122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (274198021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 137099040 + 137099041.

It is an arithmetic number, because the mean of its divisors is an integer number (137099041).

Almost surely, 2^274198081 is an apocalyptic number.

It is an amenable number.

274198081 is a deficient number, since it is larger than the sum of its proper divisors (1).

274198081 is an equidigital number, since it uses as much as digits as its factorization.

274198081 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 32256, while the sum is 40.

The square root of 274198081 is about 16558.9275316972. The cubic root of 274198081 is about 649.6630055906.

The spelling of 274198081 in words is "two hundred seventy-four million, one hundred ninety-eight thousand, eighty-one".