201126407 has 4 divisors (see below), whose sum is σ = 201574800. Its totient is φ = 200678016.

The previous prime is 201126391. The next prime is 201126479. The reversal of 201126407 is 704621102.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 704621102 = 2 ⋅352310551.

It is a cyclic number.

It is not a de Polignac number, because 201126407 - 2⁴ = 201126391 is a prime.

It is a super-5 number, since 5×201126407⁵ (a number of 43 digits) contains 55555 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201126307) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 223523 + ... + 224420.

It is an arithmetic number, because the mean of its divisors is an integer number (50393700).

Almost surely, 2^201126407 is an apocalyptic number.

201126407 is a deficient number, since it is larger than the sum of its proper divisors (448393).

201126407 is an equidigital number, since it uses as much as digits as its factorization.

201126407 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 448392.

The product of its (nonzero) digits is 672, while the sum is 23.

The square root of 201126407 is about 14181.9042092379. The cubic root of 201126407 is about 585.8993709878.

Adding to 201126407 its reverse (704621102), we get a palindrome (905747509).

The spelling of 201126407 in words is "two hundred one million, one hundred twenty-six thousand, four hundred seven".