133061306 has 8 divisors (see below), whose sum is σ = 228105120. Its totient is φ = 57026268.

The previous prime is 133061303. The next prime is 133061311. The reversal of 133061306 is 603160331.

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

It is a super-2 number, since 2×133061306² = 35410622308851272, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (133061303) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4752176 + ... + 4752203.

It is an arithmetic number, because the mean of its divisors is an integer number (28513140).

Almost surely, 2^133061306 is an apocalyptic number.

133061306 is a deficient number, since it is larger than the sum of its proper divisors (95043814).

133061306 is an equidigital number, since it uses as much as digits as its factorization.

133061306 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9504388.

The product of its (nonzero) digits is 972, while the sum is 23.

The square root of 133061306 is about 11535.2202406369. The cubic root of 133061306 is about 510.5252898667.

The spelling of 133061306 in words is "one hundred thirty-three million, sixty-one thousand, three hundred six".