42058165 has 12 divisors (see below), whose sum is σ = 52156332. Its totient is φ = 32557440.

The previous prime is 42058141. The next prime is 42058189. The reversal of 42058165 is 56185024.

It is an interprime number because it is at equal distance from previous prime (42058141) and next prime (42058189).

It can be written as a sum of positive squares in 2 ways, for example, as 26801329 + 15256836 = 5177^2 + 3906^2 .

It is not a de Polignac number, because 42058165 - 2²³ = 33669557 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 429 + ... + 9181.

It is an arithmetic number, because the mean of its divisors is an integer number (4346361).

Almost surely, 2^42058165 is an apocalyptic number.

It is an amenable number.

42058165 is a deficient number, since it is larger than the sum of its proper divisors (10098167).

42058165 is an equidigital number, since it uses as much as digits as its factorization.

42058165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8820 (or 8789 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 31.

The square root of 42058165 is about 6485.2266729853. The cubic root of 42058165 is about 347.7630532413.

It can be divided in two parts, 420 and 58165, that added together give a palindrome (58585).

The spelling of 42058165 in words is "forty-two million, fifty-eight thousand, one hundred sixty-five".