272145239 has 2 divisors, whose sum is σ = 272145240. Its totient is φ = 272145238.

The previous prime is 272145161. The next prime is 272145271. The reversal of 272145239 is 932541272.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-272145239 is a prime.

It is a super-2 number, since 2×272145239² = 148126062220734242, which contains 22 as substring.

It is a Chen prime.

It is equal to p_14821649 and since 272145239 and 14821649 have the same sum of digits, it is a Honaker prime.

It is a junction number, because it is equal to n+sod(n) for n = 272145199 and 272145208.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (272145739) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 136072619 + 136072620.

It is an arithmetic number, because the mean of its divisors is an integer number (136072620).

Almost surely, 2^272145239 is an apocalyptic number.

272145239 is a deficient number, since it is larger than the sum of its proper divisors (1).

272145239 is an equidigital number, since it uses as much as digits as its factorization.

272145239 is an evil number, because the sum of its binary digits is even.

The product of its digits is 30240, while the sum is 35.

The square root of 272145239 is about 16496.8251187918. The cubic root of 272145239 is about 648.0376627693.

The spelling of 272145239 in words is "two hundred seventy-two million, one hundred forty-five thousand, two hundred thirty-nine".