275287042 has 4 divisors (see below), whose sum is σ = 412930566. Its totient is φ = 137643520.

The previous prime is 275287039. The next prime is 275287081. The reversal of 275287042 is 240782572.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 274863241 + 423801 = 16579^2 + 651^2 .

It is a junction number, because it is equal to n+sod(n) for n = 275286992 and 275287010.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68821759 + ... + 68821762.

Almost surely, 2^275287042 is an apocalyptic number.

275287042 is a deficient number, since it is larger than the sum of its proper divisors (137643524).

275287042 is a wasteful number, since it uses less digits than its factorization.

275287042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137643523.

The product of its (nonzero) digits is 62720, while the sum is 37.

The square root of 275287042 is about 16591.7763364867. The cubic root of 275287042 is about 650.5219019437.

The spelling of 275287042 in words is "two hundred seventy-five million, two hundred eighty-seven thousand, forty-two".