201125451 has 16 divisors (see below), whose sum is σ = 275892768. Its totient is φ = 130233600.

The previous prime is 201125437. The next prime is 201125461. The reversal of 201125451 is 154521102.

It is not a de Polignac number, because 201125451 - 2⁹ = 201124939 is a prime.

It is not an unprimeable number, because it can be changed into a prime (201125461) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 83281 + ... + 85661.

It is an arithmetic number, because the mean of its divisors is an integer number (17243298).

Almost surely, 2^201125451 is an apocalyptic number.

201125451 is a deficient number, since it is larger than the sum of its proper divisors (74767317).

201125451 is a wasteful number, since it uses less digits than its factorization.

201125451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3182.

The product of its (nonzero) digits is 400, while the sum is 21.

The square root of 201125451 is about 14181.8705042741. The cubic root of 201125451 is about 585.8984426816.

Adding to 201125451 its reverse (154521102), we get a palindrome (355646553).

It can be divided in two parts, 201 and 125451, that multiplied together give a triangular number (25215651 = T₇₁₀₁).

The spelling of 201125451 in words is "two hundred one million, one hundred twenty-five thousand, four hundred fifty-one".