42645111 has 8 divisors (see below), whose sum is σ = 56904960. Its totient is φ = 28407672.

The previous prime is 42645107. The next prime is 42645131. The reversal of 42645111 is 11154624.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 42645111 - 2² = 42645107 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42645131) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 495 + ... + 9248.

It is an arithmetic number, because the mean of its divisors is an integer number (7113120).

Almost surely, 2^42645111 is an apocalyptic number.

42645111 is a deficient number, since it is larger than the sum of its proper divisors (14259849).

42645111 is a wasteful number, since it uses less digits than its factorization.

42645111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11205.

The product of its digits is 960, while the sum is 24.

The square root of 42645111 is about 6530.3224269557. The cubic root of 42645111 is about 349.3733303278.

Adding to 42645111 its reverse (11154624), we get a palindrome (53799735).

The spelling of 42645111 in words is "forty-two million, six hundred forty-five thousand, one hundred eleven".