1053791999 has 4 divisors (see below), whose sum is σ = 1134852936. Its totient is φ = 972731064.

The previous prime is 1053791957. The next prime is 1053792001. The reversal of 1053791999 is 9991973501.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9991973501 = 337 ⋅29649773.

It is a cyclic number.

It is not a de Polignac number, because 1053791999 - 2¹⁶ = 1053726463 is a prime.

It is a super-2 number, since 2×1053791999² = 2220955154312832002, which contains 22 as substring.

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 1053791999.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1053791909) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40530449 + ... + 40530474.

It is an arithmetic number, because the mean of its divisors is an integer number (283713234).

Almost surely, 2^1053791999 is an apocalyptic number.

1053791999 is a deficient number, since it is larger than the sum of its proper divisors (81060937).

1053791999 is an equidigital number, since it uses as much as digits as its factorization.

1053791999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81060936.

The product of its (nonzero) digits is 688905, while the sum is 53.

The square root of 1053791999 is about 32462.1625742956. The cubic root of 1053791999 is about 1017.6184341371.

The spelling of 1053791999 in words is "one billion, fifty-three million, seven hundred ninety-one thousand, nine hundred ninety-nine".