133524705 has 16 divisors (see below), whose sum is σ = 213842880. Its totient is φ = 71145408.

The previous prime is 133524701. The next prime is 133524707. The reversal of 133524705 is 507425331.

It is not a de Polignac number, because 133524705 - 2² = 133524701 is a prime.

It is not an unprimeable number, because it can be changed into a prime (133524701) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14814 + ... + 22056.

It is an arithmetic number, because the mean of its divisors is an integer number (13365180).

Almost surely, 2^133524705 is an apocalyptic number.

133524705 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

133524705 is a deficient number, since it is larger than the sum of its proper divisors (80318175).

133524705 is a wasteful number, since it uses less digits than its factorization.

133524705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8480.

The product of its (nonzero) digits is 12600, while the sum is 30.

The square root of 133524705 is about 11555.2890487430. The cubic root of 133524705 is about 511.1172546083.

The spelling of 133524705 in words is "one hundred thirty-three million, five hundred twenty-four thousand, seven hundred five".