42161055 has 8 divisors (see below), whose sum is σ = 67457712. Its totient is φ = 22485888.

The previous prime is 42161039. The next prime is 42161069. The reversal of 42161055 is 55016124.

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

It is not a de Polignac number, because 42161055 - 2⁴ = 42161039 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1405354 + ... + 1405383.

It is an arithmetic number, because the mean of its divisors is an integer number (8432214).

Almost surely, 2^42161055 is an apocalyptic number.

42161055 is a deficient number, since it is larger than the sum of its proper divisors (25296657).

42161055 is a wasteful number, since it uses less digits than its factorization.

42161055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2810745.

The product of its (nonzero) digits is 1200, while the sum is 24.

The square root of 42161055 is about 6493.1544722115. The cubic root of 42161055 is about 348.0464084627.

Adding to 42161055 its reverse (55016124), we get a palindrome (97177179).

The spelling of 42161055 in words is "forty-two million, one hundred sixty-one thousand, fifty-five".