1318370951 has 2 divisors, whose sum is σ = 1318370952. Its totient is φ = 1318370950.

The previous prime is 1318370947. The next prime is 1318370957. The reversal of 1318370951 is 1590738131.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1318370951 - 2² = 1318370947 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1318370957) 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, 659185475 + 659185476.

It is an arithmetic number, because the mean of its divisors is an integer number (659185476).

Almost surely, 2^1318370951 is an apocalyptic number.

1318370951 is a deficient number, since it is larger than the sum of its proper divisors (1).

1318370951 is an equidigital number, since it uses as much as digits as its factorization.

1318370951 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 22680, while the sum is 38.

The square root of 1318370951 is about 36309.3782788965. The cubic root of 1318370951 is about 1096.5098611530.

The spelling of 1318370951 in words is "one billion, three hundred eighteen million, three hundred seventy thousand, nine hundred fifty-one".