200139451 has 2 divisors, whose sum is σ = 200139452. Its totient is φ = 200139450.

The previous prime is 200139449. The next prime is 200139463. The reversal of 200139451 is 154931002.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 200139451 - 2¹ = 200139449 is a prime.

Together with 200139449, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (200139431) 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 as a sum of consecutive naturals, namely, 100069725 + 100069726.

It is an arithmetic number, because the mean of its divisors is an integer number (100069726).

Almost surely, 2^200139451 is an apocalyptic number.

200139451 is a deficient number, since it is larger than the sum of its proper divisors (1).

200139451 is an equidigital number, since it uses as much as digits as its factorization.

200139451 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1080, while the sum is 25.

The square root of 200139451 is about 14147.0651019920. The cubic root of 200139451 is about 584.9394351306.

The spelling of 200139451 in words is "two hundred million, one hundred thirty-nine thousand, four hundred fifty-one".