1201583 has 2 divisors, whose sum is σ = 1201584. Its totient is φ = 1201582.

The previous prime is 1201567. The next prime is 1201601. The reversal of 1201583 is 3851021.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1201583 - 2⁴ = 1201567 is a prime.

It is a plaindrome in base 16.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1201513) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 600791 + 600792.

It is an arithmetic number, because the mean of its divisors is an integer number (600792).

2^1201583 is an apocalyptic number.

1201583 is a deficient number, since it is larger than the sum of its proper divisors (1).

1201583 is an equidigital number, since it uses as much as digits as its factorization.

1201583 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 240, while the sum is 20.

The square root of 1201583 is about 1096.1674142210. The cubic root of 1201583 is about 106.3125638450.

The spelling of 1201583 in words is "one million, two hundred one thousand, five hundred eighty-three".