133509074 has 4 divisors (see below), whose sum is σ = 200263614. Its totient is φ = 66754536.

The previous prime is 133509071. The next prime is 133509107. The reversal of 133509074 is 470905331.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 470905331 = 13 ⋅36223487.

It can be written as a sum of positive squares in only one way, i.e., 80874049 + 52635025 = 8993^2 + 7255^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 133509074.

It is not an unprimeable number, because it can be changed into a prime (133509071) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33377267 + ... + 33377270.

Almost surely, 2^133509074 is an apocalyptic number.

133509074 is a deficient number, since it is larger than the sum of its proper divisors (66754540).

133509074 is an equidigital number, since it uses as much as digits as its factorization.

133509074 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66754539.

The product of its (nonzero) digits is 11340, while the sum is 32.

The square root of 133509074 is about 11554.6126720025. The cubic root of 133509074 is about 511.0973092716.

The spelling of 133509074 in words is "one hundred thirty-three million, five hundred nine thousand, seventy-four".