42534165 has 16 divisors (see below), whose sum is σ = 68213376. Its totient is φ = 22632000.

The previous prime is 42534161. The next prime is 42534169. The reversal of 42534165 is 56143524.

It is an interprime number because it is at equal distance from previous prime (42534161) and next prime (42534169).

It is not a de Polignac number, because 42534165 - 2² = 42534161 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42534161) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3840 + ... + 9990.

It is an arithmetic number, because the mean of its divisors is an integer number (4263336).

Almost surely, 2^42534165 is an apocalyptic number.

It is an amenable number.

42534165 is a deficient number, since it is larger than the sum of its proper divisors (25679211).

42534165 is a wasteful number, since it uses less digits than its factorization.

42534165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6620.

The product of its digits is 14400, while the sum is 30.

The square root of 42534165 is about 6521.8222146882. The cubic root of 42534165 is about 349.0700893431.

Adding to 42534165 its reverse (56143524), we get a palindrome (98677689).

The spelling of 42534165 in words is "forty-two million, five hundred thirty-four thousand, one hundred sixty-five".