42150223 has 2 divisors, whose sum is σ = 42150224. Its totient is φ = 42150222.

The previous prime is 42150217. The next prime is 42150233. The reversal of 42150223 is 32205124.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42150223 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 42150223.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42150233) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21075111 + 21075112.

It is an arithmetic number, because the mean of its divisors is an integer number (21075112).

Almost surely, 2^42150223 is an apocalyptic number.

42150223 is a deficient number, since it is larger than the sum of its proper divisors (1).

42150223 is an equidigital number, since it uses as much as digits as its factorization.

42150223 is an evil number, because the sum of its binary digits is even.

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

The square root of 42150223 is about 6492.3203094117. The cubic root of 42150223 is about 348.0165992655.

Adding to 42150223 its reverse (32205124), we get a palindrome (74355347).

The spelling of 42150223 in words is "forty-two million, one hundred fifty thousand, two hundred twenty-three".