179400049 has 2 divisors, whose sum is σ = 179400050. Its totient is φ = 179400048.

The previous prime is 179400047. The next prime is 179400083. The reversal of 179400049 is 940004971.

It is an a-pointer prime, because the next prime (179400083) can be obtained adding 179400049 to its sum of digits (34).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 130119649 + 49280400 = 11407^2 + 7020^2 .

It is a cyclic number.

It is not a de Polignac number, because 179400049 - 2¹ = 179400047 is a prime.

Together with 179400047, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 179399987 and 179400023.

It is not a weakly prime, because it can be changed into another prime (179400047) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 89700024 + 89700025.

It is an arithmetic number, because the mean of its divisors is an integer number (89700025).

Almost surely, 2^179400049 is an apocalyptic number.

It is an amenable number.

179400049 is a deficient number, since it is larger than the sum of its proper divisors (1).

179400049 is an equidigital number, since it uses as much as digits as its factorization.

179400049 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9072, while the sum is 34.

The square root of 179400049 is about 13394.0303493758. The cubic root of 179400049 is about 563.9936129669.

The spelling of 179400049 in words is "one hundred seventy-nine million, four hundred thousand, forty-nine".