275640097 has 4 divisors (see below), whose sum is σ = 275691520. Its totient is φ = 275588676.

The previous prime is 275640037. The next prime is 275640107. The reversal of 275640097 is 790046572.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-275640097 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (275640037) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16593 + ... + 28750.

It is an arithmetic number, because the mean of its divisors is an integer number (68922880).

Almost surely, 2^275640097 is an apocalyptic number.

It is an amenable number.

275640097 is a deficient number, since it is larger than the sum of its proper divisors (51423).

275640097 is an equidigital number, since it uses as much as digits as its factorization.

275640097 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51422.

The product of its (nonzero) digits is 105840, while the sum is 40.

The square root of 275640097 is about 16602.4123849518. The cubic root of 275640097 is about 650.7998807576.

The spelling of 275640097 in words is "two hundred seventy-five million, six hundred forty thousand, ninety-seven".