278560141 has 4 divisors (see below), whose sum is σ = 287545984. Its totient is φ = 269574300.

The previous prime is 278560127. The next prime is 278560157. The reversal of 278560141 is 141065872.

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 278560141 - 2¹⁷ = 278429069 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 278560097 and 278560106.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (278500141) 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, 4492875 + ... + 4492936.

It is an arithmetic number, because the mean of its divisors is an integer number (71886496).

Almost surely, 2^278560141 is an apocalyptic number.

It is an amenable number.

278560141 is a deficient number, since it is larger than the sum of its proper divisors (8985843).

278560141 is an equidigital number, since it uses as much as digits as its factorization.

278560141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8985842.

The product of its (nonzero) digits is 13440, while the sum is 34.

The square root of 278560141 is about 16690.1210600762. The cubic root of 278560141 is about 653.0899356831.

It can be divided in two parts, 2785 and 60141, that added together give a palindrome (62926).

The spelling of 278560141 in words is "two hundred seventy-eight million, five hundred sixty thousand, one hundred forty-one".