1234143409 has 2 divisors, whose sum is σ = 1234143410. Its totient is φ = 1234143408.

The previous prime is 1234143389. The next prime is 1234143467. The reversal of 1234143409 is 9043414321.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1223600400 + 10543009 = 34980^2 + 3247^2 .

It is a cyclic number.

It is not a de Polignac number, because 1234143409 - 2²⁹ = 697272497 is a prime.

It is not a weakly prime, because it can be changed into another prime (1234144409) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 617071704 + 617071705.

It is an arithmetic number, because the mean of its divisors is an integer number (617071705).

Almost surely, 2^1234143409 is an apocalyptic number.

It is an amenable number.

1234143409 is a deficient number, since it is larger than the sum of its proper divisors (1).

1234143409 is an equidigital number, since it uses as much as digits as its factorization.

1234143409 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10368, while the sum is 31.

The square root of 1234143409 is about 35130.3772965791. The cubic root of 1234143409 is about 1072.6430159766.

The spelling of 1234143409 in words is "one billion, two hundred thirty-four million, one hundred forty-three thousand, four hundred nine".