994153136129 has 2 divisors, whose sum is σ = 994153136130. Its totient is φ = 994153136128.

The previous prime is 994153136113. The next prime is 994153136161. The reversal of 994153136129 is 921631351499.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 845989729729 + 148163406400 = 919777^2 + 384920^2 .

It is a cyclic number.

It is not a de Polignac number, because 994153136129 - 2⁴ = 994153136113 is a prime.

It is not a weakly prime, because it can be changed into another prime (994153138129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 497076568064 + 497076568065.

It is an arithmetic number, because the mean of its divisors is an integer number (497076568065).

Almost surely, 2^994153136129 is an apocalyptic number.

It is an amenable number.

994153136129 is a deficient number, since it is larger than the sum of its proper divisors (1).

994153136129 is an equidigital number, since it uses as much as digits as its factorization.

994153136129 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1574640, while the sum is 53.

The spelling of 994153136129 in words is "nine hundred ninety-four billion, one hundred fifty-three million, one hundred thirty-six thousand, one hundred twenty-nine".