179021149 has 2 divisors, whose sum is σ = 179021150. Its totient is φ = 179021148.

The previous prime is 179021137. The next prime is 179021159. The reversal of 179021149 is 941120971.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 174715524 + 4305625 = 13218^2 + 2075^2 .

It is a cyclic number.

It is not a de Polignac number, because 179021149 - 2¹¹ = 179019101 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (179021159) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 89510574 + 89510575.

It is an arithmetic number, because the mean of its divisors is an integer number (89510575).

Almost surely, 2^179021149 is an apocalyptic number.

It is an amenable number.

179021149 is a deficient number, since it is larger than the sum of its proper divisors (1).

179021149 is an equidigital number, since it uses as much as digits as its factorization.

179021149 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4536, while the sum is 34.

The square root of 179021149 is about 13379.8785121540. The cubic root of 179021149 is about 563.5962741636.

The spelling of 179021149 in words is "one hundred seventy-nine million, twenty-one thousand, one hundred forty-nine".