42165735 has 16 divisors (see below), whose sum is σ = 69642240. Its totient is φ = 21762720.

The previous prime is 42165719. The next prime is 42165751. The reversal of 42165735 is 53756124.

It is an interprime number because it is at equal distance from previous prime (42165719) and next prime (42165751).

It is not a de Polignac number, because 42165735 - 2⁴ = 42165719 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 42165696 and 42165705.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 44875 + ... + 45804.

It is an arithmetic number, because the mean of its divisors is an integer number (4352640).

Almost surely, 2^42165735 is an apocalyptic number.

42165735 is a deficient number, since it is larger than the sum of its proper divisors (27476505).

42165735 is a wasteful number, since it uses less digits than its factorization.

42165735 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90718.

The product of its digits is 25200, while the sum is 33.

The square root of 42165735 is about 6493.5148417479. The cubic root of 42165735 is about 348.0592860415.

The spelling of 42165735 in words is "forty-two million, one hundred sixty-five thousand, seven hundred thirty-five".