272643149 has 2 divisors, whose sum is σ = 272643150. Its totient is φ = 272643148.

The previous prime is 272643143. The next prime is 272643209. The reversal of 272643149 is 941346272.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 272019049 + 624100 = 16493^2 + 790^2 .

It is a cyclic number.

It is not a de Polignac number, because 272643149 - 2⁸ = 272642893 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (272643143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 136321574 + 136321575.

It is an arithmetic number, because the mean of its divisors is an integer number (136321575).

Almost surely, 2^272643149 is an apocalyptic number.

It is an amenable number.

272643149 is a deficient number, since it is larger than the sum of its proper divisors (1).

272643149 is an equidigital number, since it uses as much as digits as its factorization.

272643149 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 72576, while the sum is 38.

The square root of 272643149 is about 16511.9093081327. The cubic root of 272643149 is about 648.4326330605.

The spelling of 272643149 in words is "two hundred seventy-two million, six hundred forty-three thousand, one hundred forty-nine".