42945701 has 4 divisors (see below), whose sum is σ = 42979392. Its totient is φ = 42912012.

The previous prime is 42945697. The next prime is 42945709. The reversal of 42945701 is 10754924.

It is a happy number.

42945701 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, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 42945701 - 2² = 42945697 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 (42945709) 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, 14855 + ... + 17508.

It is an arithmetic number, because the mean of its divisors is an integer number (10744848).

Almost surely, 2^42945701 is an apocalyptic number.

It is an amenable number.

42945701 is a deficient number, since it is larger than the sum of its proper divisors (33691).

42945701 is a wasteful number, since it uses less digits than its factorization.

42945701 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33690.

The product of its (nonzero) digits is 10080, while the sum is 32.

The square root of 42945701 is about 6553.2969564945. The cubic root of 42945701 is about 350.1922780232.

The spelling of 42945701 in words is "forty-two million, nine hundred forty-five thousand, seven hundred one".