1253901013 has 2 divisors, whose sum is σ = 1253901014. Its totient is φ = 1253901012.

The previous prime is 1253901001. The next prime is 1253901023. The reversal of 1253901013 is 3101093521.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1071056529 + 182844484 = 32727^2 + 13522^2 .

It is an emirp because it is prime and its reverse (3101093521) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1253901013 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1253901023) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 626950506 + 626950507.

It is an arithmetic number, because the mean of its divisors is an integer number (626950507).

Almost surely, 2^1253901013 is an apocalyptic number.

It is an amenable number.

1253901013 is a deficient number, since it is larger than the sum of its proper divisors (1).

1253901013 is an equidigital number, since it uses as much as digits as its factorization.

1253901013 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 810, while the sum is 25.

The square root of 1253901013 is about 35410.4647385487. The cubic root of 1253901013 is about 1078.3367783404.

Adding to 1253901013 its reverse (3101093521), we get a palindrome (4354994534).

The spelling of 1253901013 in words is "one billion, two hundred fifty-three million, nine hundred one thousand, thirteen".