215152133 has 8 divisors (see below), whose sum is σ = 251885760. Its totient is φ = 179917920.

The previous prime is 215152129. The next prime is 215152169. The reversal of 215152133 is 331251512.

It is a happy number.

215152133 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 215152133 - 2² = 215152129 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 215152099 and 215152108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (215152103) 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, 374543 + ... + 375116.

It is an arithmetic number, because the mean of its divisors is an integer number (31485720).

Almost surely, 2^215152133 is an apocalyptic number.

It is an amenable number.

215152133 is a deficient number, since it is larger than the sum of its proper divisors (36733627).

215152133 is an equidigital number, since it uses as much as digits as its factorization.

215152133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 749707.

The product of its digits is 900, while the sum is 23.

The square root of 215152133 is about 14668.0650734853. The cubic root of 215152133 is about 599.2139085130.

The spelling of 215152133 in words is "two hundred fifteen million, one hundred fifty-two thousand, one hundred thirty-three".