42154093 has 4 divisors (see below), whose sum is σ = 42169248. Its totient is φ = 42138940.

The previous prime is 42154087. The next prime is 42154117. The reversal of 42154093 is 39045124.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42154093 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 (42154003) 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, 2071 + ... + 9412.

It is an arithmetic number, because the mean of its divisors is an integer number (10542312).

Almost surely, 2^42154093 is an apocalyptic number.

It is an amenable number.

42154093 is a deficient number, since it is larger than the sum of its proper divisors (15155).

42154093 is a wasteful number, since it uses less digits than its factorization.

42154093 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15154.

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 42154093 is about 6492.6183470153. The cubic root of 42154093 is about 348.0272499250.

The spelling of 42154093 in words is "forty-two million, one hundred fifty-four thousand, ninety-three".