42648101 has 4 divisors (see below), whose sum is σ = 42674604. Its totient is φ = 42621600.

The previous prime is 42648059. The next prime is 42648107. The reversal of 42648101 is 10184624.

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 23716900 + 18931201 = 4870^2 + 4351^2 .

It is a cyclic number.

It is not a de Polignac number, because 42648101 - 2⁶ = 42648037 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42648107) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10670 + ... + 14111.

It is an arithmetic number, because the mean of its divisors is an integer number (10668651).

Almost surely, 2^42648101 is an apocalyptic number.

It is an amenable number.

42648101 is a deficient number, since it is larger than the sum of its proper divisors (26503).

42648101 is a wasteful number, since it uses less digits than its factorization.

42648101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26502.

The product of its (nonzero) digits is 1536, while the sum is 26.

The square root of 42648101 is about 6530.5513549776. The cubic root of 42648101 is about 349.3814954048.

The spelling of 42648101 in words is "forty-two million, six hundred forty-eight thousand, one hundred one".