274139 has 2 divisors, whose sum is σ = 274140. Its totient is φ = 274138.

The previous prime is 274123. The next prime is 274147. The reversal of 274139 is 931472.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 274139 - 2⁴ = 274123 is a prime.

It is a Chen prime.

It is a plaindrome in base 12.

It is not a weakly prime, because it can be changed into another prime (274199) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 137069 + 137070.

It is an arithmetic number, because the mean of its divisors is an integer number (137070).

2²⁷⁴¹³⁹ is an apocalyptic number.

274139 is a deficient number, since it is larger than the sum of its proper divisors (1).

274139 is an equidigital number, since it uses as much as digits as its factorization.

274139 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1512, while the sum is 26.

The square root of 274139 is about 523.5828492225. The cubic root of 274139 is about 64.9616341640.

The spelling of 274139 in words is "two hundred seventy-four thousand, one hundred thirty-nine".