845127242 has 8 divisors (see below), whose sum is σ = 1274126436. Its totient is φ = 420418432.

The previous prime is 845127223. The next prime is 845127259. The reversal of 845127242 is 242721548.

It can be written as a sum of positive squares in 2 ways, for example, as 521163241 + 323964001 = 22829^2 + 17999^2 .

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1072103 + ... + 1072890.

Almost surely, 2^845127242 is an apocalyptic number.

845127242 is a deficient number, since it is larger than the sum of its proper divisors (428999194).

845127242 is a wasteful number, since it uses less digits than its factorization.

845127242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2145192.

The product of its digits is 35840, while the sum is 35.

The square root of 845127242 is about 29071.0722540466. The cubic root of 845127242 is about 945.4546460636.

The spelling of 845127242 in words is "eight hundred forty-five million, one hundred twenty-seven thousand, two hundred forty-two".