133705503 has 12 divisors (see below), whose sum is σ = 193316760. Its totient is φ = 89050896.

The previous prime is 133705499. The next prime is 133705519. The reversal of 133705503 is 305507331.

It is not a de Polignac number, because 133705503 - 2² = 133705499 is a prime.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133705703) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3493 + ... + 16721.

It is an arithmetic number, because the mean of its divisors is an integer number (16109730).

Almost surely, 2^133705503 is an apocalyptic number.

133705503 is a deficient number, since it is larger than the sum of its proper divisors (59611257).

133705503 is a wasteful number, since it uses less digits than its factorization.

133705503 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14358 (or 14355 counting only the distinct ones).

The product of its (nonzero) digits is 4725, while the sum is 27.

The square root of 133705503 is about 11563.1095731209. The cubic root of 133705503 is about 511.3478418998.

The spelling of 133705503 in words is "one hundred thirty-three million, seven hundred five thousand, five hundred three".