42454141 has 4 divisors (see below), whose sum is σ = 42530112. Its totient is φ = 42378172.

The previous prime is 42454129. The next prime is 42454169. The reversal of 42454141 is 14145424.

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 a de Polignac number, because none of the positive numbers 2^k-42454141 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 (42454121) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37141 + ... + 38266.

It is an arithmetic number, because the mean of its divisors is an integer number (10632528).

Almost surely, 2^42454141 is an apocalyptic number.

It is an amenable number.

42454141 is a deficient number, since it is larger than the sum of its proper divisors (75971).

42454141 is an equidigital number, since it uses as much as digits as its factorization.

42454141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75970.

The product of its digits is 2560, while the sum is 25.

The square root of 42454141 is about 6515.6842311456. The cubic root of 42454141 is about 348.8510378148.

Adding to 42454141 its reverse (14145424), we get a palindrome (56599565).

The spelling of 42454141 in words is "forty-two million, four hundred fifty-four thousand, one hundred forty-one".