275633145 has 32 divisors (see below), whose sum is σ = 500451840. Its totient is φ = 143873280.

The previous prime is 275633107. The next prime is 275633153. The reversal of 275633145 is 541336572.

275633145 is a `hidden beast` number, since 2 + 7 + 5 + 633 + 14 + 5 = 666.

It is not a de Polignac number, because 275633145 - 2⁹ = 275632633 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 15376 + ... + 28065.

It is an arithmetic number, because the mean of its divisors is an integer number (15639120).

Almost surely, 2^275633145 is an apocalyptic number.

It is an amenable number.

275633145 is a deficient number, since it is larger than the sum of its proper divisors (224818695).

275633145 is a wasteful number, since it uses less digits than its factorization.

275633145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43502 (or 43496 counting only the distinct ones).

The product of its digits is 75600, while the sum is 36.

The square root of 275633145 is about 16602.2030164674. The cubic root of 275633145 is about 650.7944093731.

The spelling of 275633145 in words is "two hundred seventy-five million, six hundred thirty-three thousand, one hundred forty-five".