215146158 has 16 divisors (see below), whose sum is σ = 452939520. Its totient is φ = 67940856.

The previous prime is 215146153. The next prime is 215146189. The reversal of 215146158 is 851641512.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (215146153) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 943510 + ... + 943737.

It is an arithmetic number, because the mean of its divisors is an integer number (28308720).

Almost surely, 2^215146158 is an apocalyptic number.

215146158 is an abundant number, since it is smaller than the sum of its proper divisors (237793362).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

215146158 is a wasteful number, since it uses less digits than its factorization.

215146158 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1887271.

The product of its digits is 9600, while the sum is 33.

The square root of 215146158 is about 14667.8613983089. The cubic root of 215146158 is about 599.2083615291.

It can be divided in two parts, 21514 and 6158, that added together give a palindrome (27672).

The spelling of 215146158 in words is "two hundred fifteen million, one hundred forty-six thousand, one hundred fifty-eight".