20130535147 has 2 divisors, whose sum is σ = 20130535148. Its totient is φ = 20130535146.

The previous prime is 20130535121. The next prime is 20130535151. The reversal of 20130535147 is 74153503102.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20130535147 is a prime.

It is not a weakly prime, because it can be changed into another prime (20130535247) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10065267573 + 10065267574.

It is an arithmetic number, because the mean of its divisors is an integer number (10065267574).

Almost surely, 2^20130535147 is an apocalyptic number.

20130535147 is a deficient number, since it is larger than the sum of its proper divisors (1).

20130535147 is an equidigital number, since it uses as much as digits as its factorization.

20130535147 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12600, while the sum is 31.

The spelling of 20130535147 in words is "twenty billion, one hundred thirty million, five hundred thirty-five thousand, one hundred forty-seven".