42641165 has 32 divisors (see below), whose sum is σ = 61966080. Its totient is φ = 27546624.

The previous prime is 42641153. The next prime is 42641171. The reversal of 42641165 is 56114624.

It is not a de Polignac number, because 42641165 - 2⁶ = 42641101 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 43157 + ... + 44133.

It is an arithmetic number, because the mean of its divisors is an integer number (1936440).

Almost surely, 2^42641165 is an apocalyptic number.

It is an amenable number.

42641165 is a deficient number, since it is larger than the sum of its proper divisors (19324915).

42641165 is a wasteful number, since it uses less digits than its factorization.

42641165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1061.

The product of its digits is 5760, while the sum is 29.

The square root of 42641165 is about 6530.0202909333. The cubic root of 42641165 is about 349.3625540266.

Adding to 42641165 its reverse (56114624), we get a palindrome (98755789).

The spelling of 42641165 in words is "forty-two million, six hundred forty-one thousand, one hundred sixty-five".