133006445 has 16 divisors (see below), whose sum is σ = 187512192. Its totient is φ = 89290560.

The previous prime is 133006429. The next prime is 133006463. The reversal of 133006445 is 544600331.

It is not a de Polignac number, because 133006445 - 2⁴ = 133006429 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 92297 + ... + 93726.

It is an arithmetic number, because the mean of its divisors is an integer number (11719512).

Almost surely, 2^133006445 is an apocalyptic number.

It is an amenable number.

133006445 is a deficient number, since it is larger than the sum of its proper divisors (54505747).

133006445 is a wasteful number, since it uses less digits than its factorization.

133006445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 186052.

The product of its (nonzero) digits is 4320, while the sum is 26.

The square root of 133006445 is about 11532.8420174734. The cubic root of 133006445 is about 510.4551172552.

Adding to 133006445 its reverse (544600331), we get a palindrome (677606776).

The spelling of 133006445 in words is "one hundred thirty-three million, six thousand, four hundred forty-five".