42146233 has 2 divisors, whose sum is σ = 42146234. Its totient is φ = 42146232.

The previous prime is 42146207. The next prime is 42146243. The reversal of 42146233 is 33264124.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 42146064 + 169 = 6492^2 + 13^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42146233 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 42146198 and 42146207.

It is not a weakly prime, because it can be changed into another prime (42146243) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21073116 + 21073117.

It is an arithmetic number, because the mean of its divisors is an integer number (21073117).

Almost surely, 2^42146233 is an apocalyptic number.

It is an amenable number.

42146233 is a deficient number, since it is larger than the sum of its proper divisors (1).

42146233 is an equidigital number, since it uses as much as digits as its factorization.

42146233 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3456, while the sum is 25.

The square root of 42146233 is about 6492.0130160067. The cubic root of 42146233 is about 348.0056176704.

The spelling of 42146233 in words is "forty-two million, one hundred forty-six thousand, two hundred thirty-three".