1319949875 has 16 divisors (see below), whose sum is σ = 1718922816. Its totient is φ = 1010046400.

The previous prime is 1319949871. The next prime is 1319949881. The reversal of 1319949875 is 5789499131.

It is not a de Polignac number, because 1319949875 - 2² = 1319949871 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1319949875.

It is not an unprimeable number, because it can be changed into a prime (1319949871) 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 15 ways as a sum of consecutive naturals, for example, 226682 + ... + 232431.

It is an arithmetic number, because the mean of its divisors is an integer number (107432676).

Almost surely, 2^1319949875 is an apocalyptic number.

1319949875 is a deficient number, since it is larger than the sum of its proper divisors (398972941).

1319949875 is an equidigital number, since it uses as much as digits as its factorization.

1319949875 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 459151 (or 459141 counting only the distinct ones).

The product of its digits is 2449440, while the sum is 56.

The square root of 1319949875 is about 36331.1144200119. The cubic root of 1319949875 is about 1096.9474251629.

The spelling of 1319949875 in words is "one billion, three hundred nineteen million, nine hundred forty-nine thousand, eight hundred seventy-five".