133009826 has 4 divisors (see below), whose sum is σ = 199514742. Its totient is φ = 66504912.

The previous prime is 133009817. The next prime is 133009831. The reversal of 133009826 is 628900331.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 131905225 + 1104601 = 11485^2 + 1051^2 .

It is a super-2 number, since 2×133009826² = 35383227625100552, which contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 133009792 and 133009801.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33252455 + ... + 33252458.

Almost surely, 2^133009826 is an apocalyptic number.

133009826 is a deficient number, since it is larger than the sum of its proper divisors (66504916).

133009826 is an equidigital number, since it uses as much as digits as its factorization.

133009826 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66504915.

The product of its (nonzero) digits is 7776, while the sum is 32.

The square root of 133009826 is about 11532.9885979307. The cubic root of 133009826 is about 510.4594424444.

The spelling of 133009826 in words is "one hundred thirty-three million, nine thousand, eight hundred twenty-six".