1600549849 has 2 divisors, whose sum is σ = 1600549850. Its totient is φ = 1600549848.

The previous prime is 1600549843. The next prime is 1600549859. The reversal of 1600549849 is 9489450061.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1001279449 + 599270400 = 31643^2 + 24480^2 .

It is a cyclic number.

It is not a de Polignac number, because 1600549849 - 2²¹ = 1598452697 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1600549799 and 1600549808.

It is not a weakly prime, because it can be changed into another prime (1600549843) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 800274924 + 800274925.

It is an arithmetic number, because the mean of its divisors is an integer number (800274925).

Almost surely, 2^1600549849 is an apocalyptic number.

It is an amenable number.

1600549849 is a deficient number, since it is larger than the sum of its proper divisors (1).

1600549849 is an equidigital number, since it uses as much as digits as its factorization.

1600549849 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 311040, while the sum is 46.

The square root of 1600549849 is about 40006.8725221055. The cubic root of 1600549849 is about 1169.7410606261.

The spelling of 1600549849 in words is "one billion, six hundred million, five hundred forty-nine thousand, eight hundred forty-nine".