1585147 has 2 divisors, whose sum is σ = 1585148. Its totient is φ = 1585146.

The previous prime is 1585127. The next prime is 1585201. The reversal of 1585147 is 7415851.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1585147 - 2¹⁵ = 1552379 is a prime.

It is a Chen prime.

1585147 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (1585127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 792573 + 792574.

It is an arithmetic number, because the mean of its divisors is an integer number (792574).

2^1585147 is an apocalyptic number.

1585147 is a deficient number, since it is larger than the sum of its proper divisors (1).

1585147 is an equidigital number, since it uses as much as digits as its factorization.

1585147 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5600, while the sum is 31.

The square root of 1585147 is about 1259.0262110060. The cubic root of 1585147 is about 116.5976635041.

The spelling of 1585147 in words is "one million, five hundred eighty-five thousand, one hundred forty-seven".