1053123999 has 8 divisors (see below), whose sum is σ = 1410820992. Its totient is φ = 698754840.

The previous prime is 1053123959. The next prime is 1053124019. The reversal of 1053123999 is 9993213501.

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

It is not a de Polignac number, because 1053123999 - 2¹⁶ = 1053058463 is a prime.

It is a super-2 number, since 2×1053123999² = 2218140314539504002, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1053123999.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1053123959) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 831219 + ... + 832484.

It is an arithmetic number, because the mean of its divisors is an integer number (176352624).

Almost surely, 2^1053123999 is an apocalyptic number.

1053123999 is a deficient number, since it is larger than the sum of its proper divisors (357696993).

1053123999 is a wasteful number, since it uses less digits than its factorization.

1053123999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1663917.

The product of its (nonzero) digits is 65610, while the sum is 42.

The square root of 1053123999 is about 32451.8720415325. The cubic root of 1053123999 is about 1017.4033655085.

The spelling of 1053123999 in words is "one billion, fifty-three million, one hundred twenty-three thousand, nine hundred ninety-nine".