133140001 has 4 divisors (see below), whose sum is σ = 133292692. Its totient is φ = 132987312.

The previous prime is 133139999. The next prime is 133140019. The reversal of 133140001 is 100041331.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 100041331 = 13 ⋅7695487.

It can be written as a sum of positive squares in 2 ways, for example, as 41267776 + 91872225 = 6424^2 + 9585^2 .

It is a cyclic number.

It is not a de Polignac number, because 133140001 - 2¹ = 133139999 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (133140041) 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, 75030 + ... + 76783.

It is an arithmetic number, because the mean of its divisors is an integer number (33323173).

Almost surely, 2^133140001 is an apocalyptic number.

It is an amenable number.

133140001 is a deficient number, since it is larger than the sum of its proper divisors (152691).

133140001 is an equidigital number, since it uses as much as digits as its factorization.

133140001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 152690.

The product of its (nonzero) digits is 36, while the sum is 13.

The square root of 133140001 is about 11538.6308113225. The cubic root of 133140001 is about 510.6259148374.

Adding to 133140001 its reverse (100041331), we get a palindrome (233181332).

The spelling of 133140001 in words is "one hundred thirty-three million, one hundred forty thousand, one".