215371042 has 16 divisors (see below), whose sum is σ = 340554240. Its totient is φ = 101869488.

The previous prime is 215371033. The next prime is 215371067. The reversal of 215371042 is 240173512.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 215370998 and 215371016.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25023 + ... + 32509.

It is an arithmetic number, because the mean of its divisors is an integer number (21284640).

Almost surely, 2^215371042 is an apocalyptic number.

215371042 is a deficient number, since it is larger than the sum of its proper divisors (125183198).

215371042 is a wasteful number, since it uses less digits than its factorization.

215371042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8265.

The product of its (nonzero) digits is 1680, while the sum is 25.

The square root of 215371042 is about 14675.5252716896. The cubic root of 215371042 is about 599.4170653101.

The spelling of 215371042 in words is "two hundred fifteen million, three hundred seventy-one thousand, forty-two".