1499495749 has 2 divisors, whose sum is σ = 1499495750. Its totient is φ = 1499495748.

The previous prime is 1499495729. The next prime is 1499495759. The reversal of 1499495749 is 9475949941.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 751746724 + 747749025 = 27418^2 + 27345^2 .

It is a cyclic number.

It is not a de Polignac number, because 1499495749 - 2⁹ = 1499495237 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1499495729) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 749747874 + 749747875.

It is an arithmetic number, because the mean of its divisors is an integer number (749747875).

Almost surely, 2^1499495749 is an apocalyptic number.

It is an amenable number.

1499495749 is a deficient number, since it is larger than the sum of its proper divisors (1).

1499495749 is an equidigital number, since it uses as much as digits as its factorization.

1499495749 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 14696640, while the sum is 61.

The square root of 1499495749 is about 38723.3230624646. The cubic root of 1499495749 is about 1144.5859563323.

The spelling of 1499495749 in words is "one billion, four hundred ninety-nine million, four hundred ninety-five thousand, seven hundred forty-nine".