272065981 has 8 divisors (see below), whose sum is σ = 297016704. Its totient is φ = 247151520.

The previous prime is 272065973. The next prime is 272065999. The reversal of 272065981 is 189560272.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 272065981 - 2³ = 272065973 is a prime.

It is a super-2 number, since 2×272065981² = 148039796034984722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (272065901) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8041 + ... + 24673.

It is an arithmetic number, because the mean of its divisors is an integer number (37127088).

Almost surely, 2^272065981 is an apocalyptic number.

It is an amenable number.

272065981 is a deficient number, since it is larger than the sum of its proper divisors (24950723).

272065981 is a wasteful number, since it uses less digits than its factorization.

272065981 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18131.

The product of its (nonzero) digits is 60480, while the sum is 40.

The square root of 272065981 is about 16494.4227240604. The cubic root of 272065981 is about 647.9747464184.

The spelling of 272065981 in words is "two hundred seventy-two million, sixty-five thousand, nine hundred eighty-one".