42871501 has 8 divisors (see below), whose sum is σ = 45521784. Its totient is φ = 40235520.

The previous prime is 42871489. The next prime is 42871529. The reversal of 42871501 is 10517824.

42871501 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 18714276 + 24157225 = 4326^2 + 4915^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 42871501 - 2⁵ = 42871469 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 42871501.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42871001) 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 7 ways as a sum of consecutive naturals, for example, 2961 + ... + 9721.

It is an arithmetic number, because the mean of its divisors is an integer number (5690223).

Almost surely, 2^42871501 is an apocalyptic number.

It is an amenable number.

42871501 is a deficient number, since it is larger than the sum of its proper divisors (2650283).

42871501 is a wasteful number, since it uses less digits than its factorization.

42871501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7151.

The product of its (nonzero) digits is 2240, while the sum is 28.

The square root of 42871501 is about 6547.6332365214. The cubic root of 42871501 is about 349.9904786525.

The spelling of 42871501 in words is "forty-two million, eight hundred seventy-one thousand, five hundred one".