42153171 has 4 divisors (see below), whose sum is σ = 56204232. Its totient is φ = 28102112.

The previous prime is 42153169. The next prime is 42153173. The reversal of 42153171 is 17135124.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (42153169) and next prime (42153173).

It is a cyclic number.

It is not a de Polignac number, because 42153171 - 2¹ = 42153169 is a prime.

It is not an unprimeable number, because it can be changed into a prime (42153173) 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, 7025526 + ... + 7025531.

It is an arithmetic number, because the mean of its divisors is an integer number (14051058).

Almost surely, 2^42153171 is an apocalyptic number.

42153171 is a deficient number, since it is larger than the sum of its proper divisors (14051061).

42153171 is a wasteful number, since it uses less digits than its factorization.

42153171 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14051060.

The product of its digits is 840, while the sum is 24.

The square root of 42153171 is about 6492.5473429156. The cubic root of 42153171 is about 348.0247125402.

Adding to 42153171 its reverse (17135124), we get a palindrome (59288295).

It can be divided in two parts, 42153 and 171, that added together give a palindrome (42324).

The spelling of 42153171 in words is "forty-two million, one hundred fifty-three thousand, one hundred seventy-one".