1204143397 has 2 divisors, whose sum is σ = 1204143398. Its totient is φ = 1204143396.

The previous prime is 1204143299. The next prime is 1204143401. The reversal of 1204143397 is 7933414021.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 798966756 + 405176641 = 28266^2 + 20129^2 .

It is a cyclic number.

It is not a de Polignac number, because 1204143397 - 2²⁷ = 1069925669 is a prime.

It is a super-2 number, since 2×1204143397² = 2899922641077399218, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1204143097) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 602071698 + 602071699.

It is an arithmetic number, because the mean of its divisors is an integer number (602071699).

Almost surely, 2^1204143397 is an apocalyptic number.

It is an amenable number.

1204143397 is a deficient number, since it is larger than the sum of its proper divisors (1).

1204143397 is an equidigital number, since it uses as much as digits as its factorization.

1204143397 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18144, while the sum is 34.

The square root of 1204143397 is about 34700.7694006920. The cubic root of 1204143397 is about 1063.8802242945.

The spelling of 1204143397 in words is "one billion, two hundred four million, one hundred forty-three thousand, three hundred ninety-seven".