272780137 has 4 divisors (see below), whose sum is σ = 311748736. Its totient is φ = 233811540.

The previous prime is 272780107. The next prime is 272780143. The reversal of 272780137 is 731087272.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 272780137 - 2⁷ = 272780009 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 272780096 and 272780105.

It is not an unprimeable number, because it can be changed into a prime (272780107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19484289 + ... + 19484302.

It is an arithmetic number, because the mean of its divisors is an integer number (77937184).

Almost surely, 2^272780137 is an apocalyptic number.

It is an amenable number.

272780137 is a deficient number, since it is larger than the sum of its proper divisors (38968599).

272780137 is an equidigital number, since it uses as much as digits as its factorization.

272780137 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38968598.

The product of its (nonzero) digits is 32928, while the sum is 37.

The square root of 272780137 is about 16516.0569446827. The cubic root of 272780137 is about 648.5412153069.

The spelling of 272780137 in words is "two hundred seventy-two million, seven hundred eighty thousand, one hundred thirty-seven".