42013169 has 4 divisors (see below), whose sum is σ = 45832560. Its totient is φ = 38193780.

The previous prime is 42013163. The next prime is 42013187. The reversal of 42013169 is 96131024.

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 42013169 - 2⁸ = 42012913 is a prime.

It is a super-2 number, since 2×42013169² = 3530212738845122, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (42013163) 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, 1909679 + ... + 1909700.

It is an arithmetic number, because the mean of its divisors is an integer number (11458140).

Almost surely, 2^42013169 is an apocalyptic number.

It is an amenable number.

42013169 is a deficient number, since it is larger than the sum of its proper divisors (3819391).

42013169 is a wasteful number, since it uses less digits than its factorization.

42013169 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3819390.

The product of its (nonzero) digits is 1296, while the sum is 26.

The square root of 42013169 is about 6481.7566291863. The cubic root of 42013169 is about 347.6389906882.

The spelling of 42013169 in words is "forty-two million, thirteen thousand, one hundred sixty-nine".