215148533 has 8 divisors (see below), whose sum is σ = 229202400. Its totient is φ = 201367728.

The previous prime is 215148503. The next prime is 215148581. The reversal of 215148533 is 335841512.

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

It is a cyclic number.

It is not a de Polignac number, because 215148533 - 2¹⁰ = 215147509 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 215148533.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (215148503) 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, 66638 + ... + 69791.

It is an arithmetic number, because the mean of its divisors is an integer number (28650300).

Almost surely, 2^215148533 is an apocalyptic number.

It is an amenable number.

215148533 is a deficient number, since it is larger than the sum of its proper divisors (14053867).

215148533 is a wasteful number, since it uses less digits than its factorization.

215148533 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136531.

The product of its digits is 14400, while the sum is 32.

The square root of 215148533 is about 14667.9423573997. The cubic root of 215148533 is about 599.2105664095.

The spelling of 215148533 in words is "two hundred fifteen million, one hundred forty-eight thousand, five hundred thirty-three".