133100145 has 64 divisors (see below), whose sum is σ = 245548800. Its totient is φ = 68359680.

The previous prime is 133100117. The next prime is 133100153. The reversal of 133100145 is 541001331.

It is not a de Polignac number, because 133100145 - 2⁷ = 133100017 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 769279 + ... + 769451.

It is an arithmetic number, because the mean of its divisors is an integer number (3836700).

Almost surely, 2^133100145 is an apocalyptic number.

133100145 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

133100145 is a deficient number, since it is larger than the sum of its proper divisors (112448655).

133100145 is a wasteful number, since it uses less digits than its factorization.

133100145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 367 (or 361 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 18.

The square root of 133100145 is about 11536.9036140552. The cubic root of 133100145 is about 510.5749571052.

Adding to 133100145 its reverse (541001331), we get a palindrome (674101476).

The spelling of 133100145 in words is "one hundred thirty-three million, one hundred thousand, one hundred forty-five".