42361091 has 4 divisors (see below), whose sum is σ = 42468192. Its totient is φ = 42253992.

The previous prime is 42361079. The next prime is 42361129. The reversal of 42361091 is 19016324.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 42361091 - 2¹⁴ = 42344707 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 42361091.

It is not an unprimeable number, because it can be changed into a prime (42361001) 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, 52955 + ... + 53748.

It is an arithmetic number, because the mean of its divisors is an integer number (10617048).

Almost surely, 2^42361091 is an apocalyptic number.

42361091 is a deficient number, since it is larger than the sum of its proper divisors (107101).

42361091 is a wasteful number, since it uses less digits than its factorization.

42361091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107100.

The product of its (nonzero) digits is 1296, while the sum is 26.

The square root of 42361091 is about 6508.5398516103. The cubic root of 42361091 is about 348.5959835164.

The spelling of 42361091 in words is "forty-two million, three hundred sixty-one thousand, ninety-one".