42315013 has 8 divisors (see below), whose sum is σ = 46802168. Its totient is φ = 38003904.

The previous prime is 42314983. The next prime is 42315017. The reversal of 42315013 is 31051324.

It can be written as a sum of positive squares in 4 ways, for example, as 1329409 + 40985604 = 1153^2 + 6402^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 42315013 - 2⁵ = 42314981 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42315017) 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 7 ways as a sum of consecutive naturals, for example, 43506 + ... + 44467.

It is an arithmetic number, because the mean of its divisors is an integer number (5850271).

Almost surely, 2^42315013 is an apocalyptic number.

It is an amenable number.

42315013 is a deficient number, since it is larger than the sum of its proper divisors (4487155).

42315013 is a wasteful number, since it uses less digits than its factorization.

42315013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88023.

The product of its (nonzero) digits is 360, while the sum is 19.

The square root of 42315013 is about 6504.9990776325. Note that the first 3 decimals coincide. The cubic root of 42315013 is about 348.4695433259.

Adding to 42315013 its reverse (31051324), we get a palindrome (73366337).

The spelling of 42315013 in words is "forty-two million, three hundred fifteen thousand, thirteen".