42313073 has 4 divisors (see below), whose sum is σ = 46159728. Its totient is φ = 38466420.

The previous prime is 42313067. The next prime is 42313081. The reversal of 42313073 is 37031324.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 42313073 - 2¹⁴ = 42296689 is a prime.

It is a super-2 number, since 2×42313073² = 3580792293406658, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42313013) 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, 1923311 + ... + 1923332.

It is an arithmetic number, because the mean of its divisors is an integer number (11539932).

Almost surely, 2^42313073 is an apocalyptic number.

It is an amenable number.

42313073 is a deficient number, since it is larger than the sum of its proper divisors (3846655).

42313073 is a wasteful number, since it uses less digits than its factorization.

42313073 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3846654.

The product of its (nonzero) digits is 1512, while the sum is 23.

The square root of 42313073 is about 6504.8499598377. The cubic root of 42313073 is about 348.4642178618.

Adding to 42313073 its reverse (37031324), we get a palindrome (79344397).

The spelling of 42313073 in words is "forty-two million, three hundred thirteen thousand, seventy-three".