213151378 has 8 divisors (see below), whose sum is σ = 348793200. Its totient is φ = 96886980.

The previous prime is 213151331. The next prime is 213151391. The reversal of 213151378 is 873151312.

213151378 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 an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4844328 + ... + 4844371.

It is an arithmetic number, because the mean of its divisors is an integer number (43599150).

Almost surely, 2^213151378 is an apocalyptic number.

213151378 is a deficient number, since it is larger than the sum of its proper divisors (135641822).

213151378 is a wasteful number, since it uses less digits than its factorization.

213151378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9688712.

The product of its digits is 5040, while the sum is 31.

The square root of 213151378 is about 14599.7047230415. The cubic root of 213151378 is about 597.3507063261.

The spelling of 213151378 in words is "two hundred thirteen million, one hundred fifty-one thousand, three hundred seventy-eight".