42156103 has 8 divisors (see below), whose sum is σ = 46463760. Its totient is φ = 37927680.

The previous prime is 42156091. The next prime is 42156109. The reversal of 42156103 is 30165124.

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 42156103 - 2⁵ = 42156071 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42156109) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18688 + ... + 20821.

It is an arithmetic number, because the mean of its divisors is an integer number (5807970).

Almost surely, 2^42156103 is an apocalyptic number.

42156103 is a deficient number, since it is larger than the sum of its proper divisors (4307657).

42156103 is a wasteful number, since it uses less digits than its factorization.

42156103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39617.

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 42156103 is about 6492.7731363417. The cubic root of 42156103 is about 348.0327814057.

The spelling of 42156103 in words is "forty-two million, one hundred fifty-six thousand, one hundred three".