42162013 has 4 divisors (see below), whose sum is σ = 43995168. Its totient is φ = 40328860.

The previous prime is 42161983. The next prime is 42162019. The reversal of 42162013 is 31026124.

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 42162013 - 2⁹ = 42161501 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 (42162019) 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, 916543 + ... + 916588.

It is an arithmetic number, because the mean of its divisors is an integer number (10998792).

Almost surely, 2^42162013 is an apocalyptic number.

It is an amenable number.

42162013 is a deficient number, since it is larger than the sum of its proper divisors (1833155).

42162013 is a wasteful number, since it uses less digits than its factorization.

42162013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1833154.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 42162013 is about 6493.2282417916. The cubic root of 42162013 is about 348.0490445916.

Adding to 42162013 its reverse (31026124), we get a palindrome (73188137).

The spelling of 42162013 in words is "forty-two million, one hundred sixty-two thousand, thirteen".