42454101 has 4 divisors (see below), whose sum is σ = 56605472. Its totient is φ = 28302732.

The previous prime is 42454073. The next prime is 42454121. The reversal of 42454101 is 10145424.

It is a happy number.

42454101 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 not a de Polignac number, because 42454101 - 2⁹ = 42453589 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 pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7075681 + ... + 7075686.

It is an arithmetic number, because the mean of its divisors is an integer number (14151368).

Almost surely, 2^42454101 is an apocalyptic number.

It is an amenable number.

42454101 is a deficient number, since it is larger than the sum of its proper divisors (14151371).

42454101 is a wasteful number, since it uses less digits than its factorization.

42454101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14151370.

The product of its (nonzero) digits is 640, while the sum is 21.

The square root of 42454101 is about 6515.6811616285. The cubic root of 42454101 is about 348.8509282531.

Adding to 42454101 its reverse (10145424), we get a palindrome (52599525).

The spelling of 42454101 in words is "forty-two million, four hundred fifty-four thousand, one hundred one".