275231601 has 20 divisors (see below), whose sum is σ = 412587252. Its totient is φ = 182845728.

The previous prime is 275231599. The next prime is 275231603. The reversal of 275231601 is 106132572.

It is a happy number.

275231601 is a `hidden beast` number, since 2 + 7 + 52 + 3 + 1 + 601 = 666.

It is an interprime number because it is at equal distance from previous prime (275231599) and next prime (275231603).

It can be written as a sum of positive squares in 2 ways, for example, as 252047376 + 23184225 = 15876^2 + 4815^2 .

It is not a de Polignac number, because 275231601 - 2¹ = 275231599 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (275231603) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 17935 + ... + 29531.

Almost surely, 2^275231601 is an apocalyptic number.

It is an amenable number.

275231601 is a deficient number, since it is larger than the sum of its proper divisors (137355651).

275231601 is a wasteful number, since it uses less digits than its factorization.

275231601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11902 (or 11893 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 27.

The square root of 275231601 is about 16590.1055150352. The cubic root of 275231601 is about 650.4782287340.

The spelling of 275231601 in words is "two hundred seventy-five million, two hundred thirty-one thousand, six hundred one".