999235707061 has 2 divisors, whose sum is σ = 999235707062. Its totient is φ = 999235707060.

The previous prime is 999235707049. The next prime is 999235707073. The reversal of 999235707061 is 160707532999.

999235707061 = T₈₁₆₁₈₃ + T₈₁₆₁₈₄ + T₈₁₆₁₈₅.

999235707061 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a balanced prime because it is at equal distance from previous prime (999235707049) and next prime (999235707073).

It can be written as a sum of positive squares in only one way, i.e., 926877935025 + 72357772036 = 962745^2 + 268994^2 .

It is a cyclic number.

It is not a de Polignac number, because 999235707061 - 2⁷ = 999235706933 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 999235706987 and 999235707005.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (999235707161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 499617853530 + 499617853531.

It is an arithmetic number, because the mean of its divisors is an integer number (499617853531).

Almost surely, 2^999235707061 is an apocalyptic number.

999235707061 is the 816185-th centered triangular number.

It is an amenable number.

999235707061 is a deficient number, since it is larger than the sum of its proper divisors (1).

999235707061 is an equidigital number, since it uses as much as digits as its factorization.

999235707061 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6429780, while the sum is 58.

The spelling of 999235707061 in words is "nine hundred ninety-nine billion, two hundred thirty-five million, seven hundred seven thousand, sixty-one".