42350161 has 6 divisors (see below), whose sum is σ = 49264530. Its totient is φ = 36300096.

The previous prime is 42350137. The next prime is 42350167. The reversal of 42350161 is 16105324.

It can be written as a sum of positive squares in only one way, i.e., 39690000 + 2660161 = 6300^2 + 1631^2 .

It is a de Polignac number, because none of the positive numbers 2^k-42350161 is a prime.

It is a super-2 number, since 2×42350161² = 3587072273451842, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (42350167) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 432096 + ... + 432193.

It is an arithmetic number, because the mean of its divisors is an integer number (8210755).

Almost surely, 2^42350161 is an apocalyptic number.

It is an amenable number.

42350161 is a deficient number, since it is larger than the sum of its proper divisors (6914369).

42350161 is an equidigital number, since it uses as much as digits as its factorization.

42350161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 864303 (or 864296 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 42350161 is about 6507.7001313828. The cubic root of 42350161 is about 348.5659993827.

Adding to 42350161 its reverse (16105324), we get a palindrome (58455485).

The spelling of 42350161 in words is "forty-two million, three hundred fifty thousand, one hundred sixty-one".