979230149 has 2 divisors, whose sum is σ = 979230150. Its totient is φ = 979230148.

The previous prime is 979230143. The next prime is 979230157. The reversal of 979230149 is 941032979.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 594481924 + 384748225 = 24382^2 + 19615^2 .

It is an emirp because it is prime and its reverse (941032979) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-979230149 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (979230143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 489615074 + 489615075.

It is an arithmetic number, because the mean of its divisors is an integer number (489615075).

Almost surely, 2^979230149 is an apocalyptic number.

It is an amenable number.

979230149 is a deficient number, since it is larger than the sum of its proper divisors (1).

979230149 is an equidigital number, since it uses as much as digits as its factorization.

979230149 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 122472, while the sum is 44.

The square root of 979230149 is about 31292.6532751699. The cubic root of 979230149 is about 993.0282236234.

The spelling of 979230149 in words is "nine hundred seventy-nine million, two hundred thirty thousand, one hundred forty-nine".