1234153409 has 2 divisors, whose sum is σ = 1234153410. Its totient is φ = 1234153408.

The previous prime is 1234153391. The next prime is 1234153421. The reversal of 1234153409 is 9043514321.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 901200400 + 332953009 = 30020^2 + 18247^2 .

It is a cyclic number.

It is not a de Polignac number, because 1234153409 - 2²⁰ = 1233104833 is a prime.

It is not a weakly prime, because it can be changed into another prime (1234153909) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 617076704 + 617076705.

It is an arithmetic number, because the mean of its divisors is an integer number (617076705).

Almost surely, 2^1234153409 is an apocalyptic number.

It is an amenable number.

1234153409 is a deficient number, since it is larger than the sum of its proper divisors (1).

1234153409 is an equidigital number, since it uses as much as digits as its factorization.

1234153409 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12960, while the sum is 32.

The square root of 1234153409 is about 35130.5196232564. The cubic root of 1234153409 is about 1072.6459131010.

The spelling of 1234153409 in words is "one billion, two hundred thirty-four million, one hundred fifty-three thousand, four hundred nine".