272656361 has 4 divisors (see below), whose sum is σ = 272813652. Its totient is φ = 272499072.

The previous prime is 272656357. The next prime is 272656381. The reversal of 272656361 is 163656272.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 77774761 + 194881600 = 8819^2 + 13960^2 .

It is a cyclic number.

It is not a de Polignac number, because 272656361 - 2² = 272656357 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (272656301) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 76016 + ... + 79521.

It is an arithmetic number, because the mean of its divisors is an integer number (68203413).

Almost surely, 2^272656361 is an apocalyptic number.

It is an amenable number.

272656361 is a deficient number, since it is larger than the sum of its proper divisors (157291).

272656361 is a wasteful number, since it uses less digits than its factorization.

272656361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157290.

The product of its digits is 90720, while the sum is 38.

The square root of 272656361 is about 16512.3093781579. The cubic root of 272656361 is about 648.4431070122.

The spelling of 272656361 in words is "two hundred seventy-two million, six hundred fifty-six thousand, three hundred sixty-one".