216134325 has 120 divisors (see below), whose sum is σ = 452280576. Its totient is φ = 101088000.

The previous prime is 216134323. The next prime is 216134327. The reversal of 216134325 is 523431612.

216134325 is a `hidden beast` number, since 2 + 1 + 613 + 43 + 2 + 5 = 666.

It is an interprime number because it is at equal distance from previous prime (216134323) and next prime (216134327).

It is not a de Polignac number, because 216134325 - 2¹ = 216134323 is a prime.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (216134323) by changing a digit.

It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 690369 + ... + 690681.

Almost surely, 2^216134325 is an apocalyptic number.

216134325 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

216134325 is an abundant number, since it is smaller than the sum of its proper divisors (236146251).

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

216134325 is a wasteful number, since it uses less digits than its factorization.

216134325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 377 (or 363 counting only the distinct ones).

The product of its digits is 4320, while the sum is 27.

The square root of 216134325 is about 14701.5075757556. The cubic root of 216134325 is about 600.1243492270.

Adding to 216134325 its reverse (523431612), we get a palindrome (739565937).

The spelling of 216134325 in words is "two hundred sixteen million, one hundred thirty-four thousand, three hundred twenty-five".