492181849 has 2 divisors, whose sum is σ = 492181850. Its totient is φ = 492181848.

The previous prime is 492181843. The next prime is 492181883. The reversal of 492181849 is 948181294.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 423042624 + 69139225 = 20568^2 + 8315^2 .

It is a cyclic number.

It is not a de Polignac number, because 492181849 - 2⁵ = 492181817 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 492181799 and 492181808.

It is not a weakly prime, because it can be changed into another prime (492181843) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 246090924 + 246090925.

It is an arithmetic number, because the mean of its divisors is an integer number (246090925).

Almost surely, 2^492181849 is an apocalyptic number.

It is an amenable number.

492181849 is a deficient number, since it is larger than the sum of its proper divisors (1).

492181849 is an equidigital number, since it uses as much as digits as its factorization.

492181849 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 165888, while the sum is 46.

The square root of 492181849 is about 22185.1718271462. The cubic root of 492181849 is about 789.5419280025.

The spelling of 492181849 in words is "four hundred ninety-two million, one hundred eighty-one thousand, eight hundred forty-nine".