275228079 has 32 divisors (see below), whose sum is σ = 454417920. Its totient is φ = 144571392.

The previous prime is 275228071. The next prime is 275228101. The reversal of 275228079 is 970822572.

It is a happy number.

It is not a de Polignac number, because 275228079 - 2³ = 275228071 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 275228079.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (275228071) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6387 + ... + 24315.

It is an arithmetic number, because the mean of its divisors is an integer number (14200560).

Almost surely, 2^275228079 is an apocalyptic number.

275228079 is a deficient number, since it is larger than the sum of its proper divisors (179189841).

275228079 is a wasteful number, since it uses less digits than its factorization.

275228079 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17999.

The product of its (nonzero) digits is 141120, while the sum is 42.

The square root of 275228079 is about 16589.9993670886. Note that the first 3 decimals coincide. The cubic root of 275228079 is about 650.4754541082.

The spelling of 275228079 in words is "two hundred seventy-five million, two hundred twenty-eight thousand, seventy-nine".