1203997469 has 2 divisors, whose sum is σ = 1203997470. Its totient is φ = 1203997468.

The previous prime is 1203997447. The next prime is 1203997471. The reversal of 1203997469 is 9647993021.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 740112025 + 463885444 = 27205^2 + 21538^2 .

It is a cyclic number.

It is not a de Polignac number, because 1203997469 - 2²⁴ = 1187220253 is a prime.

It is a super-2 number, since 2×1203997469² = 2899219810716811922, which contains 22 as substring.

Together with 1203997471, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1203997489) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 601998734 + 601998735.

It is an arithmetic number, because the mean of its divisors is an integer number (601998735).

Almost surely, 2^1203997469 is an apocalyptic number.

It is an amenable number.

1203997469 is a deficient number, since it is larger than the sum of its proper divisors (1).

1203997469 is an equidigital number, since it uses as much as digits as its factorization.

1203997469 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 734832, while the sum is 50.

The square root of 1203997469 is about 34698.6666746721. Note that the first 4 decimals coincide. The cubic root of 1203997469 is about 1063.8372459732.

The spelling of 1203997469 in words is "one billion, two hundred three million, nine hundred ninety-seven thousand, four hundred sixty-nine".