251203040147 has 2 divisors, whose sum is σ = 251203040148. Its totient is φ = 251203040146.

The previous prime is 251203040131. The next prime is 251203040149. The reversal of 251203040147 is 741040302152.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 251203040147 - 2⁴ = 251203040131 is a prime.

Together with 251203040149, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (251203040149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 125601520073 + 125601520074.

It is an arithmetic number, because the mean of its divisors is an integer number (125601520074).

Almost surely, 2^251203040147 is an apocalyptic number.

251203040147 is a deficient number, since it is larger than the sum of its proper divisors (1).

251203040147 is an equidigital number, since it uses as much as digits as its factorization.

251203040147 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6720, while the sum is 29.

Adding to 251203040147 its reverse (741040302152), we get a palindrome (992243342299).

The spelling of 251203040147 in words is "two hundred fifty-one billion, two hundred three million, forty thousand, one hundred forty-seven".