213125471 has 8 divisors (see below), whose sum is σ = 232664880. Its totient is φ = 194035392.

The previous prime is 213125443. The next prime is 213125519. The reversal of 213125471 is 174521312.

213125471 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 213125471 - 2¹⁴ = 213109087 is a prime.

It is a super-3 number, since 3×213125471³ (a number of 26 digits) contains 333 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 213125471.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213125771) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 111341 + ... + 113238.

It is an arithmetic number, because the mean of its divisors is an integer number (29083110).

Almost surely, 2^213125471 is an apocalyptic number.

213125471 is a deficient number, since it is larger than the sum of its proper divisors (19539409).

213125471 is a wasteful number, since it uses less digits than its factorization.

213125471 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 224665.

The product of its digits is 1680, while the sum is 26.

The square root of 213125471 is about 14598.8174521089. The cubic root of 213125471 is about 597.3265041340.

Adding to 213125471 its reverse (174521312), we get a palindrome (387646783).

The spelling of 213125471 in words is "two hundred thirteen million, one hundred twenty-five thousand, four hundred seventy-one".