42251141 has 4 divisors (see below), whose sum is σ = 42440832. Its totient is φ = 42061452.

The previous prime is 42251119. The next prime is 42251149. The reversal of 42251141 is 14115224.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 42251141 - 2¹⁴ = 42234757 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42251149) 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, 94511 + ... + 94956.

It is an arithmetic number, because the mean of its divisors is an integer number (10610208).

Almost surely, 2^42251141 is an apocalyptic number.

It is an amenable number.

42251141 is a deficient number, since it is larger than the sum of its proper divisors (189691).

42251141 is a wasteful number, since it uses less digits than its factorization.

42251141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 189690.

The product of its digits is 320, while the sum is 20.

The square root of 42251141 is about 6500.0877686382. The cubic root of 42251141 is about 348.2941236718.

Adding to 42251141 its reverse (14115224), we get a palindrome (56366365).

The spelling of 42251141 in words is "forty-two million, two hundred fifty-one thousand, one hundred forty-one".