1204315951 has 2 divisors, whose sum is σ = 1204315952. Its totient is φ = 1204315950.

The previous prime is 1204315933. The next prime is 1204316051. The reversal of 1204315951 is 1595134021.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1204315951 - 2⁹ = 1204315439 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1204315051) 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 as a sum of consecutive naturals, namely, 602157975 + 602157976.

It is an arithmetic number, because the mean of its divisors is an integer number (602157976).

Almost surely, 2^1204315951 is an apocalyptic number.

1204315951 is a deficient number, since it is larger than the sum of its proper divisors (1).

1204315951 is an equidigital number, since it uses as much as digits as its factorization.

1204315951 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5400, while the sum is 31.

The square root of 1204315951 is about 34703.2556253732. The cubic root of 1204315951 is about 1063.9310399533.

Adding to 1204315951 its reverse (1595134021), we get a palindrome (2799449972).

The spelling of 1204315951 in words is "one billion, two hundred four million, three hundred fifteen thousand, nine hundred fifty-one".