1601472643 has 2 divisors, whose sum is σ = 1601472644. Its totient is φ = 1601472642.

The previous prime is 1601472601. The next prime is 1601472673. The reversal of 1601472643 is 3462741061.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1601472643 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1601472599 and 1601472608.

It is not a weakly prime, because it can be changed into another prime (1601472673) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 800736321 + 800736322.

It is an arithmetic number, because the mean of its divisors is an integer number (800736322).

Almost surely, 2^1601472643 is an apocalyptic number.

1601472643 is a deficient number, since it is larger than the sum of its proper divisors (1).

1601472643 is an equidigital number, since it uses as much as digits as its factorization.

1601472643 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 24192, while the sum is 34.

The square root of 1601472643 is about 40018.4038037501. The cubic root of 1601472643 is about 1169.9658214381.

The spelling of 1601472643 in words is "one billion, six hundred one million, four hundred seventy-two thousand, six hundred forty-three".