1601147 has 2 divisors, whose sum is σ = 1601148. Its totient is φ = 1601146.

The previous prime is 1601137. The next prime is 1601161. The reversal of 1601147 is 7411061.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1601147 - 2⁸ = 1600891 is a prime.

It is not a weakly prime, because it can be changed into another prime (1601107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 800573 + 800574.

It is an arithmetic number, because the mean of its divisors is an integer number (800574).

2^1601147 is an apocalyptic number.

1601147 is a deficient number, since it is larger than the sum of its proper divisors (1).

1601147 is an equidigital number, since it uses as much as digits as its factorization.

1601147 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 168, while the sum is 20.

The square root of 1601147 is about 1265.3643743997. The cubic root of 1601147 is about 116.9886515888.

The spelling of 1601147 in words is "one million, six hundred one thousand, one hundred forty-seven".