994261129 has 2 divisors, whose sum is σ = 994261130. Its totient is φ = 994261128.

The previous prime is 994261063. The next prime is 994261157. The reversal of 994261129 is 921162499.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 990801529 + 3459600 = 31477^2 + 1860^2 .

It is a cyclic number.

It is not a de Polignac number, because 994261129 - 2⁷ = 994261001 is a prime.

It is not a weakly prime, because it can be changed into another prime (994261189) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 497130564 + 497130565.

It is an arithmetic number, because the mean of its divisors is an integer number (497130565).

Almost surely, 2^994261129 is an apocalyptic number.

It is an amenable number.

994261129 is a deficient number, since it is larger than the sum of its proper divisors (1).

994261129 is an equidigital number, since it uses as much as digits as its factorization.

994261129 is an evil number, because the sum of its binary digits is even.

The product of its digits is 69984, while the sum is 43.

The square root of 994261129 is about 31531.9065233931. The cubic root of 994261129 is about 998.0833718836.

The spelling of 994261129 in words is "nine hundred ninety-four million, two hundred sixty-one thousand, one hundred twenty-nine".