272280731 has 4 divisors (see below), whose sum is σ = 272512464. Its totient is φ = 272049000.

The previous prime is 272280727. The next prime is 272280763. The reversal of 272280731 is 137082272.

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

It is a cyclic number.

It is not a de Polignac number, because 272280731 - 2² = 272280727 is a prime.

It is a super-2 number, since 2×272280731² = 148273592947788722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (272280791) 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, 114095 + ... + 116456.

It is an arithmetic number, because the mean of its divisors is an integer number (68128116).

Almost surely, 2^272280731 is an apocalyptic number.

272280731 is a deficient number, since it is larger than the sum of its proper divisors (231733).

272280731 is a wasteful number, since it uses less digits than its factorization.

272280731 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 231732.

The product of its (nonzero) digits is 9408, while the sum is 32.

The square root of 272280731 is about 16500.9312161466. The cubic root of 272280731 is about 648.1451903427.

The spelling of 272280731 in words is "two hundred seventy-two million, two hundred eighty thousand, seven hundred thirty-one".