133524747 has 16 divisors (see below), whose sum is σ = 198012960. Its totient is φ = 88927200.

The previous prime is 133524739. The next prime is 133524767. The reversal of 133524747 is 747425331.

133524747 is a `hidden beast` number, since 133 + 52 + 474 + 7 = 666.

It is not a de Polignac number, because 133524747 - 2³ = 133524739 is a prime.

It is a super-2 number, since 2×133524747² = 35657716122828018, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (133524707) 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, 35497 + ... + 39077.

It is an arithmetic number, because the mean of its divisors is an integer number (12375810).

Almost surely, 2^133524747 is an apocalyptic number.

133524747 is a deficient number, since it is larger than the sum of its proper divisors (64488213).

133524747 is a wasteful number, since it uses less digits than its factorization.

133524747 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4971 (or 4965 counting only the distinct ones).

The product of its digits is 70560, while the sum is 36.

The square root of 133524747 is about 11555.2908660925. The cubic root of 133524747 is about 511.1173081987.

The spelling of 133524747 in words is "one hundred thirty-three million, five hundred twenty-four thousand, seven hundred forty-seven".