215671042 has 8 divisors (see below), whose sum is σ = 324244800. Its totient is φ = 107589444.

The previous prime is 215671037. The next prime is 215671067. The reversal of 215671042 is 240176512.

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

It is a self number, because there is not a number n which added to its sum of digits gives 215671042.

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, 121942 + ... + 123697.

It is an arithmetic number, because the mean of its divisors is an integer number (40530600).

Almost surely, 2^215671042 is an apocalyptic number.

215671042 is a deficient number, since it is larger than the sum of its proper divisors (108573758).

215671042 is a wasteful number, since it uses less digits than its factorization.

215671042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 246080.

The product of its (nonzero) digits is 3360, while the sum is 28.

The square root of 215671042 is about 14685.7428140357. The cubic root of 215671042 is about 599.6952545024.

The spelling of 215671042 in words is "two hundred fifteen million, six hundred seventy-one thousand, forty-two".