42151641 has 16 divisors (see below), whose sum is σ = 64896384. Its totient is φ = 23837184.

The previous prime is 42151639. The next prime is 42151657. The reversal of 42151641 is 14615124.

It is a happy number.

42151641 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 42151641 - 2¹ = 42151639 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (42151601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8310 + ... + 12383.

It is an arithmetic number, because the mean of its divisors is an integer number (4056024).

Almost surely, 2^42151641 is an apocalyptic number.

It is an amenable number.

42151641 is a deficient number, since it is larger than the sum of its proper divisors (22744743).

42151641 is a wasteful number, since it uses less digits than its factorization.

42151641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20800.

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

The square root of 42151641 is about 6492.4295144422. The cubic root of 42151641 is about 348.0205018309.

Adding to 42151641 its reverse (14615124), we get a palindrome (56766765).

The spelling of 42151641 in words is "forty-two million, one hundred fifty-one thousand, six hundred forty-one".