1097729419 has 2 divisors, whose sum is σ = 1097729420. Its totient is φ = 1097729418.

The previous prime is 1097729417. The next prime is 1097729443. The reversal of 1097729419 is 9149277901.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1097729419 - 2¹ = 1097729417 is a prime.

It is a super-2 number, since 2×1097729419² = 2410019754676155122, which contains 22 as substring.

Together with 1097729417, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (1097729417) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 548864709 + 548864710.

It is an arithmetic number, because the mean of its divisors is an integer number (548864710).

Almost surely, 2^1097729419 is an apocalyptic number.

1097729419 is a deficient number, since it is larger than the sum of its proper divisors (1).

1097729419 is an equidigital number, since it uses as much as digits as its factorization.

1097729419 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 285768, while the sum is 49.

The square root of 1097729419 is about 33131.9999245442. Note that the first 4 decimals coincide. The cubic root of 1097729419 is about 1031.5693608552.

The spelling of 1097729419 in words is "one billion, ninety-seven million, seven hundred twenty-nine thousand, four hundred nineteen".