215132142 has 16 divisors (see below), whose sum is σ = 431016912. Its totient is φ = 71585280.

The previous prime is 215132131. The next prime is 215132143. The reversal of 215132142 is 241231512.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (215132143) 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, 27609 + ... + 34532.

It is an arithmetic number, because the mean of its divisors is an integer number (26938557).

Almost surely, 2^215132142 is an apocalyptic number.

215132142 is an abundant number, since it is smaller than the sum of its proper divisors (215884770).

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

215132142 is a wasteful number, since it uses less digits than its factorization.

215132142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62723.

The product of its digits is 480, while the sum is 21.

The square root of 215132142 is about 14667.3836112648. The cubic root of 215132142 is about 599.1953491552.

Adding to 215132142 its reverse (241231512), we get a palindrome (456363654).

The spelling of 215132142 in words is "two hundred fifteen million, one hundred thirty-two thousand, one hundred forty-two".