275020137 has 32 divisors (see below), whose sum is σ = 481708800. Its totient is φ = 151732224.

The previous prime is 275020129. The next prime is 275020139. The reversal of 275020137 is 731020572.

275020137 is a `hidden beast` number, since 27 + 502 + 0 + 137 = 666.

It is not a de Polignac number, because 275020137 - 2³ = 275020129 is a prime.

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

It is a self number, because there is not a number n which added to its sum of digits gives 275020137.

It is not an unprimeable number, because it can be changed into a prime (275020139) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 19608 + ... + 30569.

It is an arithmetic number, because the mean of its divisors is an integer number (15053400).

Almost surely, 2^275020137 is an apocalyptic number.

275020137 is a gapful number since it is divisible by the number (27) formed by its first and last digit.

It is an amenable number.

275020137 is a deficient number, since it is larger than the sum of its proper divisors (206688663).

275020137 is a wasteful number, since it uses less digits than its factorization.

275020137 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50222 (or 50216 counting only the distinct ones).

The product of its (nonzero) digits is 2940, while the sum is 27.

The square root of 275020137 is about 16583.7310940572. The cubic root of 275020137 is about 650.3115957716.

The spelling of 275020137 in words is "two hundred seventy-five million, twenty thousand, one hundred thirty-seven".