1029992149 has 2 divisors, whose sum is σ = 1029992150. Its totient is φ = 1029992148.

The previous prime is 1029992099. The next prime is 1029992179. The reversal of 1029992149 is 9412999201.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1027651249 + 2340900 = 32057^2 + 1530^2 .

It is an emirp because it is prime and its reverse (9412999201) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1029992149 - 2⁷ = 1029992021 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1029992099 and 1029992108.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1029992179) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 514996074 + 514996075.

It is an arithmetic number, because the mean of its divisors is an integer number (514996075).

Almost surely, 2^1029992149 is an apocalyptic number.

It is an amenable number.

1029992149 is a deficient number, since it is larger than the sum of its proper divisors (1).

1029992149 is an equidigital number, since it uses as much as digits as its factorization.

1029992149 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 104976, while the sum is 46.

The square root of 1029992149 is about 32093.4907574729. The cubic root of 1029992149 is about 1009.8990681089.

The spelling of 1029992149 in words is "one billion, twenty-nine million, nine hundred ninety-two thousand, one hundred forty-nine".