133463505 has 72 divisors (see below), whose sum is σ = 262688832. Its totient is φ = 57685824.

The previous prime is 133463497. The next prime is 133463563. The reversal of 133463505 is 505364331.

It is a happy number.

It is not a de Polignac number, because 133463505 - 2³ = 133463497 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 265084 + ... + 265586.

It is an arithmetic number, because the mean of its divisors is an integer number (3648456).

Almost surely, 2^133463505 is an apocalyptic number.

133463505 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

133463505 is a deficient number, since it is larger than the sum of its proper divisors (129225327).

133463505 is a wasteful number, since it uses less digits than its factorization.

133463505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 563 (or 537 counting only the distinct ones).

The product of its (nonzero) digits is 16200, while the sum is 30.

The square root of 133463505 is about 11552.6406072378. The cubic root of 133463505 is about 511.0391538148.

The spelling of 133463505 in words is "one hundred thirty-three million, four hundred sixty-three thousand, five hundred five".