42111151 has 4 divisors (see below), whose sum is σ = 42584400. Its totient is φ = 41637904.

The previous prime is 42111131. The next prime is 42111211. The reversal of 42111151 is 15111124.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 42111151 - 2⁵ = 42111119 is a prime.

It is a super-3 number, since 3×42111151³ (a number of 24 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42111101) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 236491 + ... + 236668.

It is an arithmetic number, because the mean of its divisors is an integer number (10646100).

Almost surely, 2^42111151 is an apocalyptic number.

42111151 is a deficient number, since it is larger than the sum of its proper divisors (473249).

42111151 is an equidigital number, since it uses as much as digits as its factorization.

42111151 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 473248.

The product of its digits is 40, while the sum is 16.

The square root of 42111151 is about 6489.3105180751. The cubic root of 42111151 is about 347.9090323511.

Adding to 42111151 its reverse (15111124), we get a palindrome (57222275).

The spelling of 42111151 in words is "forty-two million, one hundred eleven thousand, one hundred fifty-one".