1601342399 has 2 divisors, whose sum is σ = 1601342400. Its totient is φ = 1601342398.

The previous prime is 1601342389. The next prime is 1601342461. The reversal of 1601342399 is 9932431061.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1601342399 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1601342359) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 800671199 + 800671200.

It is an arithmetic number, because the mean of its divisors is an integer number (800671200).

Almost surely, 2^1601342399 is an apocalyptic number.

1601342399 is a deficient number, since it is larger than the sum of its proper divisors (1).

1601342399 is an equidigital number, since it uses as much as digits as its factorization.

1601342399 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 34992, while the sum is 38.

The square root of 1601342399 is about 40016.7764693759. The cubic root of 1601342399 is about 1169.9341037229.

The spelling of 1601342399 in words is "one billion, six hundred one million, three hundred forty-two thousand, three hundred ninety-nine".