42253161 has 8 divisors (see below), whose sum is σ = 56400480. Its totient is φ = 28137312.

The previous prime is 42253157. The next prime is 42253163. The reversal of 42253161 is 16135224.

42253161 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 not a de Polignac number, because 42253161 - 2² = 42253157 is a prime.

It is a super-2 number, since 2×42253161² = 3570659228983842, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (42253163) 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 7 ways as a sum of consecutive naturals, for example, 4531 + ... + 10248.

It is an arithmetic number, because the mean of its divisors is an integer number (7050060).

Almost surely, 2^42253161 is an apocalyptic number.

It is an amenable number.

42253161 is a deficient number, since it is larger than the sum of its proper divisors (14147319).

42253161 is a wasteful number, since it uses less digits than its factorization.

42253161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15735.

The product of its digits is 1440, while the sum is 24.

The square root of 42253161 is about 6500.2431492983. The cubic root of 42253161 is about 348.2996741563.

Adding to 42253161 its reverse (16135224), we get a palindrome (58388385).

The spelling of 42253161 in words is "forty-two million, two hundred fifty-three thousand, one hundred sixty-one".