20146900253 has 2 divisors, whose sum is σ = 20146900254. Its totient is φ = 20146900252.

The previous prime is 20146900237. The next prime is 20146900259. The reversal of 20146900253 is 35200964102.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12965693689 + 7181206564 = 113867^2 + 84742^2 .

It is a cyclic number.

It is not a de Polignac number, because 20146900253 - 2⁴ = 20146900237 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20146900259) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10073450126 + 10073450127.

It is an arithmetic number, because the mean of its divisors is an integer number (10073450127).

Almost surely, 2^20146900253 is an apocalyptic number.

It is an amenable number.

20146900253 is a deficient number, since it is larger than the sum of its proper divisors (1).

20146900253 is an equidigital number, since it uses as much as digits as its factorization.

20146900253 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12960, while the sum is 32.

The spelling of 20146900253 in words is "twenty billion, one hundred forty-six million, nine hundred thousand, two hundred fifty-three".