133815268 has 12 divisors (see below), whose sum is σ = 234613372. Its totient is φ = 66782880.

The previous prime is 133815257. The next prime is 133815277. The reversal of 133815268 is 862518331.

It can be written as a sum of positive squares in 2 ways, for example, as 49028004 + 84787264 = 7002^2 + 9208^2 .

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28755 + ... + 33082.

Almost surely, 2^133815268 is an apocalyptic number.

It is an amenable number.

133815268 is a deficient number, since it is larger than the sum of its proper divisors (100798104).

133815268 is a wasteful number, since it uses less digits than its factorization.

133815268 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62382 (or 62380 counting only the distinct ones).

The product of its digits is 34560, while the sum is 37.

The square root of 133815268 is about 11567.8549437655. The cubic root of 133815268 is about 511.4877332835.

The spelling of 133815268 in words is "one hundred thirty-three million, eight hundred fifteen thousand, two hundred sixty-eight".