42931255 has 8 divisors (see below), whose sum is σ = 52286832. Its totient is φ = 33832128.

The previous prime is 42931253. The next prime is 42931267. The reversal of 42931255 is 55213924.

42931255 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 42931255 - 2¹ = 42931253 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42931253) 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 7 ways as a sum of consecutive naturals, for example, 63742 + ... + 64411.

It is an arithmetic number, because the mean of its divisors is an integer number (6535854).

Almost surely, 2^42931255 is an apocalyptic number.

42931255 is a deficient number, since it is larger than the sum of its proper divisors (9355577).

42931255 is a wasteful number, since it uses less digits than its factorization.

42931255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128225.

The product of its digits is 10800, while the sum is 31.

The square root of 42931255 is about 6552.1946704902. The cubic root of 42931255 is about 350.1530079304.

It can be divided in two parts, 429 and 31255, that added together give a square (31684 = 178²).

The spelling of 42931255 in words is "forty-two million, nine hundred thirty-one thousand, two hundred fifty-five".