213145106 has 8 divisors (see below), whose sum is σ = 321632640. Its totient is φ = 105934228.

The previous prime is 213145069. The next prime is 213145139. The reversal of 213145106 is 601541312.

213145106 is digitally balanced in base 3, 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 an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 318746 + ... + 319413.

It is an arithmetic number, because the mean of its divisors is an integer number (40204080).

Almost surely, 2^213145106 is an apocalyptic number.

213145106 is a deficient number, since it is larger than the sum of its proper divisors (108487534).

213145106 is a wasteful number, since it uses less digits than its factorization.

213145106 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 638328.

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 213145106 is about 14599.4899225966. The cubic root of 213145106 is about 597.3448472345.

Adding to 213145106 its reverse (601541312), we get a palindrome (814686418).

The spelling of 213145106 in words is "two hundred thirteen million, one hundred forty-five thousand, one hundred six".