200540451 has 4 divisors (see below), whose sum is σ = 267387272. Its totient is φ = 133693632.

The previous prime is 200540437. The next prime is 200540467. The reversal of 200540451 is 154045002.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 200540451 - 2⁶ = 200540387 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (200540491) 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, 33423406 + ... + 33423411.

It is an arithmetic number, because the mean of its divisors is an integer number (66846818).

Almost surely, 2^200540451 is an apocalyptic number.

200540451 is a deficient number, since it is larger than the sum of its proper divisors (66846821).

200540451 is an equidigital number, since it uses as much as digits as its factorization.

200540451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66846820.

The product of its (nonzero) digits is 800, while the sum is 21.

The square root of 200540451 is about 14161.2305609364. The cubic root of 200540451 is about 585.3298366414.

Adding to 200540451 its reverse (154045002), we get a palindrome (354585453).

The spelling of 200540451 in words is "two hundred million, five hundred forty thousand, four hundred fifty-one".