1201633 has 2 divisors, whose sum is σ = 1201634. Its totient is φ = 1201632.

The previous prime is 1201601. The next prime is 1201637. The reversal of 1201633 is 3361021.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1140624 + 61009 = 1068^2 + 247^2 .

It is a cyclic number.

It is not a de Polignac number, because 1201633 - 2⁵ = 1201601 is a prime.

It is an Ulam number.

It is not a weakly prime, because it can be changed into another prime (1201637) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 600816 + 600817.

It is an arithmetic number, because the mean of its divisors is an integer number (600817).

2^1201633 is an apocalyptic number.

It is an amenable number.

1201633 is a deficient number, since it is larger than the sum of its proper divisors (1).

1201633 is an equidigital number, since it uses as much as digits as its factorization.

1201633 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 108, while the sum is 16.

The square root of 1201633 is about 1096.1902207190. The cubic root of 1201633 is about 106.3140384426.

Adding to 1201633 its reverse (3361021), we get a palindrome (4562654).

The spelling of 1201633 in words is "one million, two hundred one thousand, six hundred thirty-three".