42454155 has 8 divisors (see below), whose sum is σ = 67926672. Its totient is φ = 22642208.

The previous prime is 42454129. The next prime is 42454169. The reversal of 42454155 is 55145424.

42454155 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 42454155 - 2¹² = 42450059 is a prime.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 1415124 + ... + 1415153.

It is an arithmetic number, because the mean of its divisors is an integer number (8490834).

Almost surely, 2^42454155 is an apocalyptic number.

42454155 is a deficient number, since it is larger than the sum of its proper divisors (25472517).

42454155 is a wasteful number, since it uses less digits than its factorization.

42454155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2830285.

The product of its digits is 16000, while the sum is 30.

The square root of 42454155 is about 6515.6853054763. The cubic root of 42454155 is about 348.8510761614.

Adding to 42454155 its reverse (55145424), we get a palindrome (97599579).

The spelling of 42454155 in words is "forty-two million, four hundred fifty-four thousand, one hundred fifty-five".