215379073 has 16 divisors (see below), whose sum is σ = 265713280. Its totient is φ = 170004096.

The previous prime is 215379019. The next prime is 215379097. The reversal of 215379073 is 370973512.

It is a cyclic number.

It is not a de Polignac number, because 215379073 - 2¹⁷ = 215248001 is a prime.

It is not an unprimeable number, because it can be changed into a prime (215379013) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 38998 + ... + 44176.

It is an arithmetic number, because the mean of its divisors is an integer number (16607080).

Almost surely, 2^215379073 is an apocalyptic number.

It is an amenable number.

215379073 is a deficient number, since it is larger than the sum of its proper divisors (50334207).

215379073 is a wasteful number, since it uses less digits than its factorization.

215379073 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5656.

The product of its (nonzero) digits is 39690, while the sum is 37.

The square root of 215379073 is about 14675.7988879652. The cubic root of 215379073 is about 599.4245157990.

The spelling of 215379073 in words is "two hundred fifteen million, three hundred seventy-nine thousand, seventy-three".