2001235153 has 2 divisors, whose sum is σ = 2001235154. Its totient is φ = 2001235152.

The previous prime is 2001235151. The next prime is 2001235157. The reversal of 2001235153 is 3515321002.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1308124224 + 693110929 = 36168^2 + 26327^2 .

It is a cyclic number.

It is not a de Polignac number, because 2001235153 - 2¹ = 2001235151 is a prime.

Together with 2001235151, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (2001235151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1000617576 + 1000617577.

It is an arithmetic number, because the mean of its divisors is an integer number (1000617577).

Almost surely, 2^2001235153 is an apocalyptic number.

It is an amenable number.

2001235153 is a deficient number, since it is larger than the sum of its proper divisors (1).

2001235153 is an equidigital number, since it uses as much as digits as its factorization.

2001235153 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 900, while the sum is 22.

The square root of 2001235153 is about 44735.1668489121. The cubic root of 2001235153 is about 1260.1803623979.

Adding to 2001235153 its reverse (3515321002), we get a palindrome (5516556155).

The spelling of 2001235153 in words is "two billion, one million, two hundred thirty-five thousand, one hundred fifty-three".