1054217789 has 8 divisors (see below), whose sum is σ = 1080390528. Its totient is φ = 1028067040.

The previous prime is 1054217779. The next prime is 1054217833. The reversal of 1054217789 is 9877124501.

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 1054217789 - 2²⁰ = 1053169213 is a prime.

It is a super-2 number, since 2×1054217789² = 2222750293288097042, which contains 22 as substring.

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 (1054217779) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 135914 + ... + 143460.

It is an arithmetic number, because the mean of its divisors is an integer number (135048816).

Almost surely, 2^1054217789 is an apocalyptic number.

It is an amenable number.

1054217789 is a deficient number, since it is larger than the sum of its proper divisors (26172739).

1054217789 is an equidigital number, since it uses as much as digits as its factorization.

1054217789 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10995.

The product of its (nonzero) digits is 141120, while the sum is 44.

The square root of 1054217789 is about 32468.7201626427. The cubic root of 1054217789 is about 1017.7554736441.

The spelling of 1054217789 in words is "one billion, fifty-four million, two hundred seventeen thousand, seven hundred eighty-nine".