42453191 has 4 divisors (see below), whose sum is σ = 46312584. Its totient is φ = 38593800.

The previous prime is 42453181. The next prime is 42453221. The reversal of 42453191 is 19135424.

42453191 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 42453191 - 2²² = 38258887 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 (42453121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1929680 + ... + 1929701.

It is an arithmetic number, because the mean of its divisors is an integer number (11578146).

Almost surely, 2^42453191 is an apocalyptic number.

42453191 is a deficient number, since it is larger than the sum of its proper divisors (3859393).

42453191 is a wasteful number, since it uses less digits than its factorization.

42453191 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3859392.

The product of its digits is 4320, while the sum is 29.

The square root of 42453191 is about 6515.6113297219. The cubic root of 42453191 is about 348.8484357054.

The spelling of 42453191 in words is "forty-two million, four hundred fifty-three thousand, one hundred ninety-one".