216134429 has 8 divisors (see below), whose sum is σ = 250698048. Its totient is φ = 182492640.

The previous prime is 216134417. The next prime is 216134459. The reversal of 216134429 is 924431612.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-216134429 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 216134395 and 216134404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (216134459) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 229952 + ... + 230889.

It is an arithmetic number, because the mean of its divisors is an integer number (31337256).

Almost surely, 2^216134429 is an apocalyptic number.

It is an amenable number.

216134429 is a deficient number, since it is larger than the sum of its proper divisors (34563619).

216134429 is an equidigital number, since it uses as much as digits as its factorization.

216134429 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 460915.

The product of its digits is 10368, while the sum is 32.

The square root of 216134429 is about 14701.5111128074. The cubic root of 216134429 is about 600.1244454834.

The spelling of 216134429 in words is "two hundred sixteen million, one hundred thirty-four thousand, four hundred twenty-nine".