1499998849 has 2 divisors, whose sum is σ = 1499998850. Its totient is φ = 1499998848.

The previous prime is 1499998811. The next prime is 1499998853. The reversal of 1499998849 is 9488999941.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1282141249 + 217857600 = 35807^2 + 14760^2 .

It is a cyclic number.

It is not a de Polignac number, because 1499998849 - 2¹⁷ = 1499867777 is a prime.

It is not a weakly prime, because it can be changed into another prime (1499998879) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 749999424 + 749999425.

It is an arithmetic number, because the mean of its divisors is an integer number (749999425).

Almost surely, 2^1499998849 is an apocalyptic number.

It is an amenable number.

1499998849 is a deficient number, since it is larger than the sum of its proper divisors (1).

1499998849 is an equidigital number, since it uses as much as digits as its factorization.

1499998849 is an evil number, because the sum of its binary digits is even.

The product of its digits is 60466176, while the sum is 70.

The square root of 1499998849 is about 38729.8186027252. The cubic root of 1499998849 is about 1144.7139497608.

The spelling of 1499998849 in words is "one billion, four hundred ninety-nine million, nine hundred ninety-eight thousand, eight hundred forty-nine".