133502215 has 24 divisors (see below), whose sum is σ = 203303952. Its totient is φ = 83220480.

The previous prime is 133502209. The next prime is 133502233. The reversal of 133502215 is 512205331.

It is not a de Polignac number, because 133502215 - 2¹⁷ = 133371143 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 22074 + ... + 27463.

It is an arithmetic number, because the mean of its divisors is an integer number (8470998).

Almost surely, 2^133502215 is an apocalyptic number.

133502215 is a deficient number, since it is larger than the sum of its proper divisors (69801737).

133502215 is a wasteful number, since it uses less digits than its factorization.

133502215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49567 (or 49560 counting only the distinct ones).

The product of its (nonzero) digits is 900, while the sum is 22.

The square root of 133502215 is about 11554.3158603182. The cubic root of 133502215 is about 511.0885566169.

Adding to 133502215 its reverse (512205331), we get a palindrome (645707546).

The spelling of 133502215 in words is "one hundred thirty-three million, five hundred two thousand, two hundred fifteen".