42155093 has 8 divisors (see below), whose sum is σ = 44189376. Its totient is φ = 40168800.

The previous prime is 42155089. The next prime is 42155101. The reversal of 42155093 is 39055124.

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 42155093 - 2² = 42155089 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 (42155063) 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, 10193 + ... + 13718.

It is an arithmetic number, because the mean of its divisors is an integer number (5523672).

Almost surely, 2^42155093 is an apocalyptic number.

42155093 is a gapful number since it is divisible by the number (43) formed by its first and last digit.

It is an amenable number.

42155093 is a deficient number, since it is larger than the sum of its proper divisors (2034283).

42155093 is a wasteful number, since it uses less digits than its factorization.

42155093 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23995.

The product of its (nonzero) digits is 5400, while the sum is 29.

The square root of 42155093 is about 6492.6953570917. The cubic root of 42155093 is about 348.0300019274.

The spelling of 42155093 in words is "forty-two million, one hundred fifty-five thousand, ninety-three".