42980101 has 4 divisors (see below), whose sum is σ = 43010604. Its totient is φ = 42949600.

The previous prime is 42980099. The next prime is 42980107. The reversal of 42980101 is 10108924.

It is a happy number.

42980101 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 can be written as a sum of positive squares in 2 ways, for example, as 33339076 + 9641025 = 5774^2 + 3105^2 .

It is a cyclic number.

It is not a de Polignac number, because 42980101 - 2¹ = 42980099 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 (42980107) 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, 13030 + ... + 15991.

It is an arithmetic number, because the mean of its divisors is an integer number (10752651).

Almost surely, 2^42980101 is an apocalyptic number.

It is an amenable number.

42980101 is a deficient number, since it is larger than the sum of its proper divisors (30503).

42980101 is a wasteful number, since it uses less digits than its factorization.

42980101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30502.

The product of its (nonzero) digits is 576, while the sum is 25.

The square root of 42980101 is about 6555.9210641984. The cubic root of 42980101 is about 350.2857557483.

The spelling of 42980101 in words is "forty-two million, nine hundred eighty thousand, one hundred one".