275236139 has 2 divisors, whose sum is σ = 275236140. Its totient is φ = 275236138.

The previous prime is 275236133. The next prime is 275236153. The reversal of 275236139 is 931632572.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 275236139 - 2⁴ = 275236123 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (275236133) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 137618069 + 137618070.

It is an arithmetic number, because the mean of its divisors is an integer number (137618070).

Almost surely, 2^275236139 is an apocalyptic number.

275236139 is a deficient number, since it is larger than the sum of its proper divisors (1).

275236139 is an equidigital number, since it uses as much as digits as its factorization.

275236139 is an evil number, because the sum of its binary digits is even.

The product of its digits is 68040, while the sum is 38.

The square root of 275236139 is about 16590.2422827396. The cubic root of 275236139 is about 650.4818037280.

The spelling of 275236139 in words is "two hundred seventy-five million, two hundred thirty-six thousand, one hundred thirty-nine".