42153017 has 4 divisors (see below), whose sum is σ = 42204816. Its totient is φ = 42101220.

The previous prime is 42153011. The next prime is 42153019. The reversal of 42153017 is 71035124.

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 42153017 - 2¹² = 42148921 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 42152983 and 42153001.

It is not an unprimeable number, because it can be changed into a prime (42153011) 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, 24659 + ... + 26312.

It is an arithmetic number, because the mean of its divisors is an integer number (10551204).

Almost surely, 2^42153017 is an apocalyptic number.

It is an amenable number.

42153017 is a deficient number, since it is larger than the sum of its proper divisors (51799).

42153017 is an equidigital number, since it uses as much as digits as its factorization.

42153017 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51798.

The product of its (nonzero) digits is 840, while the sum is 23.

The square root of 42153017 is about 6492.5354831529. The cubic root of 42153017 is about 348.0242887218.

The spelling of 42153017 in words is "forty-two million, one hundred fifty-three thousand, seventeen".