42331001 has 4 divisors (see below), whose sum is σ = 42346404. Its totient is φ = 42315600.

The previous prime is 42330991. The next prime is 42331007. The reversal of 42331001 is 10013324.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 22090000 + 20241001 = 4700^2 + 4499^2 .

It is a cyclic number.

It is not a de Polignac number, because 42331001 - 2¹⁰ = 42329977 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42331007) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2330 + ... + 9491.

It is an arithmetic number, because the mean of its divisors is an integer number (10586601).

Almost surely, 2^42331001 is an apocalyptic number.

It is an amenable number.

42331001 is a deficient number, since it is larger than the sum of its proper divisors (15403).

42331001 is a wasteful number, since it uses less digits than its factorization.

42331001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15402.

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 42331001 is about 6506.2278625944. The cubic root of 42331001 is about 348.5134255412.

Adding to 42331001 its reverse (10013324), we get a palindrome (52344325).

The spelling of 42331001 in words is "forty-two million, three hundred thirty-one thousand, one".