42359121 has 24 divisors (see below), whose sum is σ = 74041344. Its totient is φ = 22780800.

The previous prime is 42359101. The next prime is 42359129. The reversal of 42359121 is 12195324.

It is not a de Polignac number, because 42359121 - 2¹⁰ = 42358097 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (42359129) 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, 18705 + ... + 20846.

It is an arithmetic number, because the mean of its divisors is an integer number (3085056).

Almost surely, 2^42359121 is an apocalyptic number.

It is an amenable number.

42359121 is a deficient number, since it is larger than the sum of its proper divisors (31682223).

42359121 is a wasteful number, since it uses less digits than its factorization.

42359121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39581 (or 39578 counting only the distinct ones).

The product of its digits is 2160, while the sum is 27.

The square root of 42359121 is about 6508.3885102228. The cubic root of 42359121 is about 348.5905796209.

The spelling of 42359121 in words is "forty-two million, three hundred fifty-nine thousand, one hundred twenty-one".