1300143997 has 2 divisors, whose sum is σ = 1300143998. Its totient is φ = 1300143996.

The previous prime is 1300143991. The next prime is 1300144019. The reversal of 1300143997 is 7993410031.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1271564281 + 28579716 = 35659^2 + 5346^2 .

It is an emirp because it is prime and its reverse (7993410031) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1300143997 - 2⁷ = 1300143869 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1300143991) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 650071998 + 650071999.

It is an arithmetic number, because the mean of its divisors is an integer number (650071999).

Almost surely, 2^1300143997 is an apocalyptic number.

It is an amenable number.

1300143997 is a deficient number, since it is larger than the sum of its proper divisors (1).

1300143997 is an equidigital number, since it uses as much as digits as its factorization.

1300143997 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20412, while the sum is 37.

The square root of 1300143997 is about 36057.5095784498. The cubic root of 1300143997 is about 1091.4331783172.

The spelling of 1300143997 in words is "one billion, three hundred million, one hundred forty-three thousand, nine hundred ninety-seven".