42161301 has 24 divisors (see below), whose sum is σ = 74954880. Its totient is φ = 22238496.

The previous prime is 42161297. The next prime is 42161359. The reversal of 42161301 is 10316124.

It is a happy number.

It is not a de Polignac number, because 42161301 - 2² = 42161297 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42161201) 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 23 ways as a sum of consecutive naturals, for example, 24921 + ... + 26558.

It is an arithmetic number, because the mean of its divisors is an integer number (3123120).

Almost surely, 2^42161301 is an apocalyptic number.

It is an amenable number.

42161301 is a deficient number, since it is larger than the sum of its proper divisors (32793579).

42161301 is a wasteful number, since it uses less digits than its factorization.

42161301 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51505 (or 51502 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 42161301 is about 6493.1734152108. The cubic root of 42161301 is about 348.0470853848.

Adding to 42161301 its reverse (10316124), we get a palindrome (52477425).

The spelling of 42161301 in words is "forty-two million, one hundred sixty-one thousand, three hundred one".