42103247 has 4 divisors (see below), whose sum is σ = 42119136. Its totient is φ = 42087360.

The previous prime is 42103231. The next prime is 42103249. The reversal of 42103247 is 74230124.

42103247 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 42103247 - 2⁴ = 42103231 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 (42103249) 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, 2903 + ... + 9624.

It is an arithmetic number, because the mean of its divisors is an integer number (10529784).

Almost surely, 2^42103247 is an apocalyptic number.

42103247 is a deficient number, since it is larger than the sum of its proper divisors (15889).

42103247 is a wasteful number, since it uses less digits than its factorization.

42103247 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15888.

The product of its (nonzero) digits is 1344, while the sum is 23.

The square root of 42103247 is about 6488.7014879712. The cubic root of 42103247 is about 347.8872642050.

The spelling of 42103247 in words is "forty-two million, one hundred three thousand, two hundred forty-seven".