42243051 has 4 divisors (see below), whose sum is σ = 56324072. Its totient is φ = 28162032.

The previous prime is 42243041. The next prime is 42243077. The reversal of 42243051 is 15034224.

42243051 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 not a de Polignac number, because 42243051 - 2⁷ = 42242923 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42243041) 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, 7040506 + ... + 7040511.

It is an arithmetic number, because the mean of its divisors is an integer number (14081018).

Almost surely, 2^42243051 is an apocalyptic number.

42243051 is a deficient number, since it is larger than the sum of its proper divisors (14081021).

42243051 is a wasteful number, since it uses less digits than its factorization.

42243051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14081020.

The product of its (nonzero) digits is 960, while the sum is 21.

The square root of 42243051 is about 6499.4654395573. The cubic root of 42243051 is about 348.2718924826.

Adding to 42243051 its reverse (15034224), we get a palindrome (57277275).

The spelling of 42243051 in words is "forty-two million, two hundred forty-three thousand, fifty-one".