361777049 has 2 divisors, whose sum is σ = 361777050. Its totient is φ = 361777048.

The previous prime is 361777007. The next prime is 361777061. The reversal of 361777049 is 940777163.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 307651600 + 54125449 = 17540^2 + 7357^2 .

It is an emirp because it is prime and its reverse (940777163) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 361777049 - 2¹⁶ = 361711513 is a prime.

It is not a weakly prime, because it can be changed into another prime (361777069) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 180888524 + 180888525.

It is an arithmetic number, because the mean of its divisors is an integer number (180888525).

Almost surely, 2^361777049 is an apocalyptic number.

It is an amenable number.

361777049 is a deficient number, since it is larger than the sum of its proper divisors (1).

361777049 is an equidigital number, since it uses as much as digits as its factorization.

361777049 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 222264, while the sum is 44.

The square root of 361777049 is about 19020.4376658372. The cubic root of 361777049 is about 712.5472538271.

The spelling of 361777049 in words is "three hundred sixty-one million, seven hundred seventy-seven thousand, forty-nine".