274164641 has 2 divisors, whose sum is σ = 274164642. Its totient is φ = 274164640.

The previous prime is 274164599. The next prime is 274164643. The reversal of 274164641 is 146461472.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 239011600 + 35153041 = 15460^2 + 5929^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-274164641 is a prime.

Together with 274164643, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (274164643) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 137082320 + 137082321.

It is an arithmetic number, because the mean of its divisors is an integer number (137082321).

Almost surely, 2^274164641 is an apocalyptic number.

It is an amenable number.

274164641 is a deficient number, since it is larger than the sum of its proper divisors (1).

274164641 is an equidigital number, since it uses as much as digits as its factorization.

274164641 is an evil number, because the sum of its binary digits is even.

The product of its digits is 32256, while the sum is 35.

The square root of 274164641 is about 16557.9177736816. The cubic root of 274164641 is about 649.6365944963.

The spelling of 274164641 in words is "two hundred seventy-four million, one hundred sixty-four thousand, six hundred forty-one".