133020530 has 8 divisors (see below), whose sum is σ = 239436972. Its totient is φ = 53208208.

The previous prime is 133020499. The next prime is 133020541. The reversal of 133020530 is 35020331.

It can be written as a sum of positive squares in 2 ways, for example, as 120538441 + 12482089 = 10979^2 + 3533^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×133020530² = 35388922802961800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 133020499 and 133020508.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6651017 + ... + 6651036.

Almost surely, 2^133020530 is an apocalyptic number.

133020530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

133020530 is a deficient number, since it is larger than the sum of its proper divisors (106416442).

133020530 is a wasteful number, since it uses less digits than its factorization.

133020530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13302060.

The product of its (nonzero) digits is 270, while the sum is 17.

The square root of 133020530 is about 11533.4526487085. The cubic root of 133020530 is about 510.4731351954.

Adding to 133020530 its reverse (35020331), we get a palindrome (168040861).

The spelling of 133020530 in words is "one hundred thirty-three million, twenty thousand, five hundred thirty".