42250123 has 8 divisors (see below), whose sum is σ = 43428528. Its totient is φ = 41080704.

The previous prime is 42250097. The next prime is 42250147. The reversal of 42250123 is 32105224.

42250123 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 a de Polignac number, because none of the positive numbers 2^k-42250123 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 42250123.

It is not an unprimeable number, because it can be changed into a prime (42250163) 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, 7911 + ... + 12127.

It is an arithmetic number, because the mean of its divisors is an integer number (5428566).

Almost surely, 2^42250123 is an apocalyptic number.

42250123 is a gapful number since it is divisible by the number (43) formed by its first and last digit.

42250123 is a deficient number, since it is larger than the sum of its proper divisors (1178405).

42250123 is a wasteful number, since it uses less digits than its factorization.

42250123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4493.

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 42250123 is about 6500.0094615316. The cubic root of 42250123 is about 348.2913263803.

Adding to 42250123 its reverse (32105224), we get a palindrome (74355347).

The spelling of 42250123 in words is "forty-two million, two hundred fifty thousand, one hundred twenty-three".