1434197909 has 2 divisors, whose sum is σ = 1434197910. Its totient is φ = 1434197908.

The previous prime is 1434197839. The next prime is 1434197939. The reversal of 1434197909 is 9097914341.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1434136900 + 61009 = 37870^2 + 247^2 .

It is a cyclic number.

It is not a de Polignac number, because 1434197909 - 2²⁸ = 1165762453 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1434197939) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 717098954 + 717098955.

It is an arithmetic number, because the mean of its divisors is an integer number (717098955).

Almost surely, 2^1434197909 is an apocalyptic number.

It is an amenable number.

1434197909 is a deficient number, since it is larger than the sum of its proper divisors (1).

1434197909 is an equidigital number, since it uses as much as digits as its factorization.

1434197909 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 244944, while the sum is 47.

The square root of 1434197909 is about 37870.8054971108. The cubic root of 1434197909 is about 1127.7245329072.

The spelling of 1434197909 in words is "one billion, four hundred thirty-four million, one hundred ninety-seven thousand, nine hundred nine".