275081145 has 16 divisors (see below), whose sum is σ = 463295040. Its totient is φ = 138988224.

The previous prime is 275081141. The next prime is 275081167. The reversal of 275081145 is 541180572.

It is not a de Polignac number, because 275081145 - 2² = 275081141 is a prime.

It is a super-2 number, since 2×275081145² = 151339272669022050, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (275081141) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 482314 + ... + 482883.

It is an arithmetic number, because the mean of its divisors is an integer number (28955940).

Almost surely, 2^275081145 is an apocalyptic number.

It is an amenable number.

275081145 is a deficient number, since it is larger than the sum of its proper divisors (188213895).

275081145 is a wasteful number, since it uses less digits than its factorization.

275081145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 965224.

The product of its (nonzero) digits is 11200, while the sum is 33.

The square root of 275081145 is about 16585.5703851269. The cubic root of 275081145 is about 650.3596786465.

The spelling of 275081145 in words is "two hundred seventy-five million, eighty-one thousand, one hundred forty-five".