1201000253 has 2 divisors, whose sum is σ = 1201000254. Its totient is φ = 1201000252.

The previous prime is 1201000247. The next prime is 1201000267. The reversal of 1201000253 is 3520001021.

It is a happy number.

It is an a-pointer prime, because the next prime (1201000267) can be obtained adding 1201000253 to its sum of digits (14).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 760546084 + 440454169 = 27578^2 + 20987^2 .

It is a cyclic number.

It is not a de Polignac number, because 1201000253 - 2⁴ = 1201000237 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1201000753) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 600500126 + 600500127.

It is an arithmetic number, because the mean of its divisors is an integer number (600500127).

Almost surely, 2^1201000253 is an apocalyptic number.

It is an amenable number.

1201000253 is a deficient number, since it is larger than the sum of its proper divisors (1).

1201000253 is an equidigital number, since it uses as much as digits as its factorization.

1201000253 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 60, while the sum is 14.

The square root of 1201000253 is about 34655.4505525466. The cubic root of 1201000253 is about 1062.9537448010.

Adding to 1201000253 its reverse (3520001021), we get a palindrome (4721001274).

The spelling of 1201000253 in words is "one billion, two hundred one million, two hundred fifty-three", and thus it is an aban number.