275242 has 8 divisors (see below), whose sum is σ = 450432. Its totient is φ = 125100.

The previous prime is 275227. The next prime is 275251. The reversal of 275242 is 242572.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Harshad number since it is a multiple of its sum of digits (22), and also a Moran number because the ratio is a prime number: 12511 = 275242 / (2 + 7 + 5 + 2 + 4 + 2).

It is a plaindrome in base 12.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6234 + ... + 6277.

It is an arithmetic number, because the mean of its divisors is an integer number (56304).

2²⁷⁵²⁴² is an apocalyptic number.

275242 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

275242 is a deficient number, since it is larger than the sum of its proper divisors (175190).

275242 is a wasteful number, since it uses less digits than its factorization.

275242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12524.

The product of its digits is 1120, while the sum is 22.

The square root of 275242 is about 524.6351112916. The cubic root of 275242 is about 65.0486420911.

The spelling of 275242 in words is "two hundred seventy-five thousand, two hundred forty-two".