1053840719 has 4 divisors (see below), whose sum is σ = 1109306040. Its totient is φ = 998375400.

The previous prime is 1053840709. The next prime is 1053840743. The reversal of 1053840719 is 9170483501.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1053840719 is a prime.

It is a super-2 number, since 2×1053840719² = 2221160522044873922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1053840709) 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, 27732632 + ... + 27732669.

It is an arithmetic number, because the mean of its divisors is an integer number (277326510).

Almost surely, 2^1053840719 is an apocalyptic number.

1053840719 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

1053840719 is a deficient number, since it is larger than the sum of its proper divisors (55465321).

1053840719 is an equidigital number, since it uses as much as digits as its factorization.

1053840719 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55465320.

The product of its (nonzero) digits is 30240, while the sum is 38.

The square root of 1053840719 is about 32462.9129777351. The cubic root of 1053840719 is about 1017.6341164242.

The spelling of 1053840719 in words is "one billion, fifty-three million, eight hundred forty thousand, seven hundred nineteen".