4209947131 has 8 divisors (see below), whose sum is σ = 4568400144. Its totient is φ = 3856438560.

The previous prime is 4209947129. The next prime is 4209947141. The reversal of 4209947131 is 1317499024.

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

It is not a de Polignac number, because 4209947131 - 2¹ = 4209947129 is a prime.

It is a super-2 number, since 2×4209947131² = 35447309691630262322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4209947111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1234336 + ... + 1237741.

It is an arithmetic number, because the mean of its divisors is an integer number (571050018).

Almost surely, 2^4209947131 is an apocalyptic number.

4209947131 is a deficient number, since it is larger than the sum of its proper divisors (358453013).

4209947131 is a wasteful number, since it uses less digits than its factorization.

4209947131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2472221.

The product of its (nonzero) digits is 54432, while the sum is 40.

The square root of 4209947131 is about 64884.1053802855. The cubic root of 4209947131 is about 1614.7013708496.

The spelling of 4209947131 in words is "four billion, two hundred nine million, nine hundred forty-seven thousand, one hundred thirty-one".