274081421 has 2 divisors, whose sum is σ = 274081422. Its totient is φ = 274081420.

The previous prime is 274081369. The next prime is 274081427. The reversal of 274081421 is 124180472.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 202492900 + 71588521 = 14230^2 + 8461^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-274081421 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (274081427) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 137040710 + 137040711.

It is an arithmetic number, because the mean of its divisors is an integer number (137040711).

Almost surely, 2^274081421 is an apocalyptic number.

It is an amenable number.

274081421 is a deficient number, since it is larger than the sum of its proper divisors (1).

274081421 is an equidigital number, since it uses as much as digits as its factorization.

274081421 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3584, while the sum is 29.

The square root of 274081421 is about 16555.4045858143. The cubic root of 274081421 is about 649.5708575627.

The spelling of 274081421 in words is "two hundred seventy-four million, eighty-one thousand, four hundred twenty-one".