215029134 has 32 divisors (see below), whose sum is σ = 481025280. Its totient is φ = 71199000.

The previous prime is 215029123. The next prime is 215029147. The reversal of 215029134 is 431920512.

215029134 is a `hidden beast` number, since 21 + 502 + 9 + 134 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 215029098 and 215029107.

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 5032 + ... + 21339.

It is an arithmetic number, because the mean of its divisors is an integer number (15032040).

Almost surely, 2^215029134 is an apocalyptic number.

215029134 is an abundant number, since it is smaller than the sum of its proper divisors (265996146).

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

215029134 is a wasteful number, since it uses less digits than its factorization.

215029134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26533 (or 26527 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The square root of 215029134 is about 14663.8717261165. The cubic root of 215029134 is about 599.0996997749.

Adding to 215029134 its reverse (431920512), we get a palindrome (646949646).

The spelling of 215029134 in words is "two hundred fifteen million, twenty-nine thousand, one hundred thirty-four".