1799015249 has 2 divisors, whose sum is σ = 1799015250. Its totient is φ = 1799015248.

The previous prime is 1799015237. The next prime is 1799015263. The reversal of 1799015249 is 9425109971.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1291324225 + 507691024 = 35935^2 + 22532^2 .

It is a cyclic number.

It is not a de Polignac number, because 1799015249 - 2¹² = 1799011153 is a prime.

It is a super-2 number, since 2×1799015249² = 6472911732269064002, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1799015269) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 899507624 + 899507625.

It is an arithmetic number, because the mean of its divisors is an integer number (899507625).

Almost surely, 2^1799015249 is an apocalyptic number.

It is an amenable number.

1799015249 is a deficient number, since it is larger than the sum of its proper divisors (1).

1799015249 is an equidigital number, since it uses as much as digits as its factorization.

1799015249 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 204120, while the sum is 47.

The square root of 1799015249 is about 42414.7998816451. The cubic root of 1799015249 is about 1216.2185270008.

The spelling of 1799015249 in words is "one billion, seven hundred ninety-nine million, fifteen thousand, two hundred forty-nine".