1499048857 has 4 divisors (see below), whose sum is σ = 1499466240. Its totient is φ = 1498631476.

The previous prime is 1499048849. The next prime is 1499048893. The reversal of 1499048857 is 7588409941.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1499048857 - 2³ = 1499048849 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1499048798 and 1499048807.

It is not an unprimeable number, because it can be changed into a prime (1499048827) 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 in 3 ways as a sum of consecutive naturals, for example, 203257 + ... + 210502.

It is an arithmetic number, because the mean of its divisors is an integer number (374866560).

Almost surely, 2^1499048857 is an apocalyptic number.

It is an amenable number.

1499048857 is a deficient number, since it is larger than the sum of its proper divisors (417383).

1499048857 is an equidigital number, since it uses as much as digits as its factorization.

1499048857 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 417382.

The product of its (nonzero) digits is 2903040, while the sum is 55.

The square root of 1499048857 is about 38717.5523115809. The cubic root of 1499048857 is about 1144.4722387419.

The spelling of 1499048857 in words is "one billion, four hundred ninety-nine million, forty-eight thousand, eight hundred fifty-seven".