47420101 has 4 divisors (see below), whose sum is σ = 47545600. Its totient is φ = 47294604.

The previous prime is 47420083. The next prime is 47420117. The reversal of 47420101 is 10102474.

47420101 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 a de Polignac number, because none of the positive numbers 2^k-47420101 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 (47420161) 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, 62181 + ... + 62938.

It is an arithmetic number, because the mean of its divisors is an integer number (11886400).

Almost surely, 2^47420101 is an apocalyptic number.

It is an amenable number.

47420101 is a deficient number, since it is larger than the sum of its proper divisors (125499).

47420101 is a wasteful number, since it uses less digits than its factorization.

47420101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125498.

The product of its (nonzero) digits is 224, while the sum is 19.

The square root of 47420101 is about 6886.2254537591. The cubic root of 47420101 is about 361.9546482261.

Adding to 47420101 its reverse (10102474), we get a palindrome (57522575).

The spelling of 47420101 in words is "forty-seven million, four hundred twenty thousand, one hundred one".