1319275490 has 32 divisors (see below), whose sum is σ = 2561445936. Its totient is φ = 486339840.

The previous prime is 1319275483. The next prime is 1319275499. The reversal of 1319275490 is 945729131.

It can be written as a sum of positive squares in 8 ways, for example, as 334633849 + 984641641 = 18293^2 + 31379^2 .

It is a Smith number, since the sum of its digits (41) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (1319275499) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 77120 + ... + 92660.

Almost surely, 2^1319275490 is an apocalyptic number.

1319275490 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1319275490 is a deficient number, since it is larger than the sum of its proper divisors (1242170446).

1319275490 is a wasteful number, since it uses less digits than its factorization.

1319275490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16214.

The product of its (nonzero) digits is 68040, while the sum is 41.

The square root of 1319275490 is about 36321.8321399128. The cubic root of 1319275490 is about 1096.7605769284.

The spelling of 1319275490 in words is "one billion, three hundred nineteen million, two hundred seventy-five thousand, four hundred ninety".