1319167421 has 8 divisors (see below), whose sum is σ = 1549791264. Its totient is φ = 1106993520.

The previous prime is 1319167417. The next prime is 1319167429. The reversal of 1319167421 is 1247619131.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1319167421 - 2² = 1319167417 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1319167429) 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 7 ways as a sum of consecutive naturals, for example, 4612331 + ... + 4612616.

It is an arithmetic number, because the mean of its divisors is an integer number (193723908).

Almost surely, 2^1319167421 is an apocalyptic number.

1319167421 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1319167421 is a deficient number, since it is larger than the sum of its proper divisors (230623843).

1319167421 is a wasteful number, since it uses less digits than its factorization.

1319167421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9224971.

The product of its digits is 9072, while the sum is 35.

The square root of 1319167421 is about 36320.3444504592. The cubic root of 1319167421 is about 1096.7306289111.

The spelling of 1319167421 in words is "one billion, three hundred nineteen million, one hundred sixty-seven thousand, four hundred twenty-one".