42361313 has 4 divisors (see below), whose sum is σ = 42519060. Its totient is φ = 42203568.

The previous prime is 42361273. The next prime is 42361343. The reversal of 42361313 is 31316324.

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 11135569 + 31225744 = 3337^2 + 5588^2 .

It is a cyclic number.

It is not a de Polignac number, because 42361313 - 2⁸ = 42361057 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42361343) 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 3 ways as a sum of consecutive naturals, for example, 78470 + ... + 79007.

It is an arithmetic number, because the mean of its divisors is an integer number (10629765).

Almost surely, 2^42361313 is an apocalyptic number.

It is an amenable number.

42361313 is a deficient number, since it is larger than the sum of its proper divisors (157747).

42361313 is a wasteful number, since it uses less digits than its factorization.

42361313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157746.

The product of its digits is 1296, while the sum is 23.

The square root of 42361313 is about 6508.5569061045. The cubic root of 42361313 is about 348.5965924728.

Adding to 42361313 its reverse (31316324), we get a palindrome (73677637).

The spelling of 42361313 in words is "forty-two million, three hundred sixty-one thousand, three hundred thirteen".