215127073 has 16 divisors (see below), whose sum is σ = 264830976. Its totient is φ = 170683920.

The previous prime is 215127067. The next prime is 215127109. The reversal of 215127073 is 370721512.

It is a de Polignac number, because none of the positive numbers 2^k-215127073 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (215127023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16561 + ... + 26542.

It is an arithmetic number, because the mean of its divisors is an integer number (16551936).

Almost surely, 2^215127073 is an apocalyptic number.

215127073 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

215127073 is a deficient number, since it is larger than the sum of its proper divisors (49703903).

215127073 is a wasteful number, since it uses less digits than its factorization.

215127073 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43164.

The product of its (nonzero) digits is 2940, while the sum is 28.

The square root of 215127073 is about 14667.2108118756. The cubic root of 215127073 is about 599.1906429855.

Adding to 215127073 its reverse (370721512), we get a palindrome (585848585).

The spelling of 215127073 in words is "two hundred fifteen million, one hundred twenty-seven thousand, seventy-three".